FLUISTCOM Fluid Structure Interaction for Combustion Systems ( MRTN-CT ) Combustion Instability Effects and Aero-Thermal Near-Wall Response

Size: px
Start display at page:

Download "FLUISTCOM Fluid Structure Interaction for Combustion Systems ( MRTN-CT-2003-504183) Combustion Instability Effects and Aero-Thermal Near-Wall Response"

Transcription

1 Detsches Zentrm für Lft- nd Ramfahrt e.v. FLISTCOM Fld Strctre Interacton for Combston Systems ( MRTN-CT ) Combston Instablty Effects and Aero-Thermal Near-Wall Response Agenda 1-Months Progress Meetng DLR-Insttte of Combston Technology, Janary 005 D. Panara, R. Dannecer, B.Noll Insttt für Verbrennngstechn DLR Detsches Zentrm für Lft- nd Ramfahrt e.v. Mtgled der Herrmann von Helmholtz-Gemenschaft Detscher Forschngszentren HGF Stttgart Insttt für Verbrennngstechn - Insttte of Combston Technology 1

2 Detsches Zentrm für Lft- nd Ramfahrt e.v. Danele Panara, Actvty Janary 003 -nversty of Florence, Mechancal Engneerng Dploma Thess ttle: Fnflo and Tascflow a comparson between two dfferent Naver-Stoes CFD codes n strong crvatre applcatons Spervsors: Prof. T. Sonen ( Helsn nversty of Tech.) Prof. F. Martell and P. Adam ( nversty of Florence ) Jan-Aprl 003 -Helsn nversty of Technology, Researcher Thess Pblcaton, Helsn nversty Laboratory Report. Jne-Jly Jly-Sept 003 -Tenomeccanca s.r.l., Italy, Control and Assemblng 003 -Novo Pgnone GE ol & Gas, Italy, Qalty Engneer Sept 003-Jne 004 -Von Karman Insttte for Fld Dynamc Dploma Corse, Department of Trbomachnery and Proplson Proect ttle: Qas-3D nsteady Nmercal Investgaton of Clocng Effects n 1&1/ Stage Transonc Trbne Spervsor: Prof. R. Denos Insttt für Verbrennngstechn - Insttte of Combston Technology

3 Detsches Zentrm für Lft- nd Ramfahrt e.v. Overvew Lteratre Research on Plsatng Flow Epermental Evdences Thermal Bondary Layer Vscos Bondary Layer Nmercal Models Tested ISAAC code Insttt für Verbrennngstechn - Insttte of Combston Technology 3

4 Oscllatng Flow: ( t) m sn( ωt) Detsches Zentrm für Lft- nd Ramfahrt e.v. Near Wall Aerodynamc Response n Plsatng Ppe Flows Sorce: C.R.Lodahl, et al.: J.Fld Mech., Vol.373, 1998 Plsatng Flow: ( t) V m sn( ωt) Re Re l l s s 400 Lamnar 800 Trblent 0l Re l s υ s Sorce: A.Scott,. Pomell : Physcs of Flds,13(5), 001 Re w a a m υ mt π R δ D l s Re c l s VD υ υ ω Vscos Bondary Layer Thermal Bondary Layer Nmercal Models ISAAC Insttt für Verbrennngstechn - Insttte of Combston Technology 4

5 Detsches Zentrm für Lft- nd Ramfahrt e.v. Trblent Flows, Characterstc Parameters Oscllatng Trblent Flow: ( t) m sn( ωt) r r r r r r r r (, t) ( ) (, t) (, t) Plsatng Trblent Flow: ( t) V m sn( ωt) ω ω ω ω ωυ τ τ 0.05 τ w ρ a c V 0.05Intermedate Freqency Qas-Lamnar m Sorce: M.Gündogd, M.Carpnlogl : JSME nt. Jornal, 4(3), 1999 Qas Steady Flow Mean parameters lttle affected Dscrepancy close to brstng freqency Effects n the Stoe-layers Phase shft of _ c p to 45 Sorce: C.R.Lodahl, et al.: J.Fld Mech., Vol.373, 1998 τ τ c τ w T 1 τ dt T 0 Mean parameters affected _/_ c p to 4 Strong nsteady effects Re-lamnarzaton can occr Vscos Bondary Layer Thermal Bondary Layer Nmercal Models ISAAC Insttt für Verbrennngstechn - Insttte of Combston Technology 5

6 Detsches Zentrm für Lft- nd Ramfahrt e.v. Near Wall Thermal Response Lacng of epermental data for crrent domnated flow Contradctory reslts n both lamnar and trblent flow condtons abot the effect of oscllatons on mean flow qanttes Measred a phase shft p to 180 º for the wall heat transfer In low-ampltde plsatng flows (sorce Valeva 00) Freqency range 0 to 1000Hz Measred heat transfer ncreases In wave domnated plsatng flows (sorce Dec, Keller and Arpac,199) Freqency range 100Hz Measred heat transfer ncreases p to a factor of 5 over steady flow The Reynolds analogy proved not to hold Vscos Bondary Layer Thermal Bondary Layer Nmercal Models ISAAC Insttt für Verbrennngstechn - Insttte of Combston Technology 6

7 7 Insttt für Verbrennngstechn - Insttte of Combston Technology Detsches Zentrm für Lft- nd Ramfahrt e.v. Vscos Bondary Layer Thermal Bondary Layer Nmercal Models ISAAC ν σ ν ν σ ν ν µ µ 1 1 f C D E f c f c t t t t t P P y D y w w ν ν Pressre-stran Moleclar vscosty Non zero vale of at the wall P for 3 for 0 δ t δ δ υ 3 3 Low-Reynolds model coeffcents Correcton for non local sotropy Fll Reynolds model Crtcal closre Pressre-Stran term (flctatng pressre) Two-eqaton model Inaccrate formlaton for plsatng flows Accrate formlatons for crvatre and rotaton Trblence Modelng Sorce: Fan, Lashmnarayana and Barnett, AIAA J. Oct. 1993

8 Detsches Zentrm für Lft- nd Ramfahrt e.v. Strategy of Investgaton Naver-Stoes CFD Code: ISAAC Developed by Morrson, J. H for a NASA contract Now freely avalable from Strctred Mltgrd nsteady Eplct Rnge-Ktta Implct Psedo Tme Steppng ( p to II order) Implct: AF3F: Dagonalzed Spatally Splt Appro. Factorzaton Compressble: Roe Fl-Splttng Problems Code applcablty to Incompressble test cases Proper etenson of B.C. to oscllatng flows Hgh Trblence Capabltes K-_ Models: Low-Reynolds SAA : Spezale,Abd,Anderson ZSGS : Zhang,So,Gats,Spezale ZSSL : Zhang,So,Spezale,La Hgh-Reynolds HIGH RE: standard RNG : Renormalzaton Grop ADRM: Ansotropc Dsspaton Rate K-_ Models: Low-Reynolds K OMEGA: Wlco Reynolds Stress Model Eplct Algebrac Reynolds Stress Model Vscos Bondary Layer Thermal Bondary Layer Nmercal Models ISAAC Insttt für Verbrennngstechn - Insttte of Combston Technology 8

9 Detsches Zentrm für Lft- nd Ramfahrt e.v. Conclsons An overvew on epermental evdences on plsatng flow has been presented The necessty of a better nderstandng of the aero-thermal near-wall flow behavor has been n deep analyzed An etensve bblography on test cases and proposed models for nsteady flows have been acqred. The ISAAC code has been tested for the ftre nvestgatons The lmtatons of the code have been addressed Possble soltons are n progress. Insttt für Verbrennngstechn - Insttte of Combston Technology 9

10 Detsches Zentrm für Lft- nd Ramfahrt e.v. Qestons? Insttt für Verbrennngstechn - Insttte of Combston Technology 10

11 Detsches Zentrm für Lft- nd Ramfahrt e.v. Etras Insttt für Verbrennngstechn - Insttte of Combston Technology 11

12 Detsches Zentrm für Lft- nd Ramfahrt e.v. Trblence Modelng Algebrac eddy vscosty models Inaccrate: Important role of transport of trblent qanttes Two eqatons hgh-reynolds model Wall fnctons Inaccrate: Steady flow wall fncton not sted Two eqatons low-reynolds model Inaccrate: Eddy vscosty sotropy assmpton Fll Reynolds stress models Inaccrate: Insffcent near wall treatment Two eqatons low Reynolds model nsteady near-wall correctons Sorce: Fan, Lashmnarayana and Barnett, AIAA J. Oct Vscos Bondary Layer Thermal Bondary Layer Nmercal Models ISAAC Insttt für Verbrennngstechn - Insttte of Combston Technology 1

13 Detsches Zentrm für Lft- nd Ramfahrt e.v. Sstanable Energy Combston Instabltes Near-wall fld strctres Strategy of nvestgaton Insttt für Verbrennngstechn - Insttte of Combston Technology 13

14 Detsches Zentrm für Lft- nd Ramfahrt e.v. References: AERODYNAMICS General overvew aerodynamcs: Low ampltde Gndogd and Carpnlogl,JSME,vol4,n3,1999 Scott and Pomell,physcs of fld,vol13,n5,001 Low and Hgh ampltde Lodahl and Smer and Fredsoe, J.Fld Mech,vol373,1998 Test case also (ppe water) Koehler and Patanar and Ibele,NASA-CR Test cases Coste and Hodevlle (flat plate ar) Tard and Bnder and Blacwelder (ppe water) Ideas for nsteady trblence models: Fan and Lashmnarayana,AIAA,vol31,1993 Manbad and L, J.Fld Mech,vol38,199 Hanalc and Stosc Rod and Scheerer,J.Flds Eng.,vol108,1986 Sstanable Energy Combston Instabltes Near-wall fld strctres Strategy of nvestgaton Insttt für Verbrennngstechn - Insttte of Combston Technology 14

15 Detsches Zentrm für Lft- nd Ramfahrt e.v. References: HEAT TRANSFER Low ampltde Valeva,Hgh Temperatre,vol37,n5,1999 Test case also ( oscllatng, compressble ncompressble) Ideas for nsteady trblence model Ideas for nsteady Energy eqaton Hgh ampltde Dec and Keller,Int.J.Heat Mass Transfer,vol35,n9,199 Test case also (oscllatng combstor tal ppe) Sstanable Energy Combston Instabltes Near-wall fld strctres Strategy of nvestgaton Insttt für Verbrennngstechn - Insttte of Combston Technology 15

16 Detsches Zentrm für Lft- nd Ramfahrt e.v. Morrson, J. H., Fl Dfference Splt Scheme for Trblent Transport Eqatons, AIAA Paper , October Morrson, J. H., A Compressble Naver-Stoes Solver wth Two-Eqaton and Reynolds Stress Trblence Closre Models, NASA CR-4440, May 199. Morrson, J. H. and Korte, J. J., Implementaton of Vgneron's Streamwse Pressre Gradent Appromaton n Parabolzed Naver-Stoes Eqatons, AIAA Jornal, Vol. 30, No. 1, November 199. Morrson, J. H., Gats, T. B., Sommer, T. P., Zhang, H. S., and So, R. M. C., Evalaton of a Near-Wall Trblent Closre Model n Predctng Compressble Ramp Flows, Near-Wall Trblent Flows, Eds. R. M. C. So, C. G. Spezale, and B. E. Lander, Elsever Scence Pblshers B.V., Chenalt, C. F., Development and Implementaton of a Scramet Cycle Analyss Code Wth a Fnte-Rate-Chemstry Combston Model For se on A Personal Compter, Masters Thess, Ar Force Insttte of Technology, December AFIT/GAE/ENY/93D-7 Abd, R., Gats, T. B., and Morrson, J. H., Assessment of Pressre-Stran Models n Predctng Compressble, Trblent Ramp Flows, AIAA Jornal, Vol. 33, No. 1, Janary Vahala, G., Vahala, L., Morrson, J., Krashennnov, S., and Sgmar, D., Effects of Netral Three-Dmensonal Trblence n the Gas Blanet Regme for Dvertors, Physcs Letters A, Vol. 05, 1995, pp Vahala, G., Vahala, L., Morrson, J., Krashennnov, S., and Sgmar, D., Torodal Wall Heat Fl and Condctvty Profles De to Netral 3D Trblence n the Gas Blanet Regme for Dvertors, Contrb. Plasma Phys., Vol. 36, No. /3, 1996, pp Gats, T. B., Predcton of Arfol Characterstcs wth Hgher Order Trblence Models, NASA Techncal Memorandm 11046, Aprl, Abstract PDF Postscrpt Gats, T. B., Arfol Stall Predcton sng a Two-Eqaton and an Eplct Algebrac Stress Model, Advances n Trblence VI, Eds. Gavrlas, S., Machels, L., and Monewtz, P. A., Klwer Academc Pblshers, Rstorcell, J. R. and Morrson, J. H., The Favre-Reynolds Average Dstncton and a Consstent Gradent Transport Epresson for the Dsspaton, Physcs of Flds, Vol. 8, No. 9, September Abd, R., Morrson, J. H., Gats, T. B., and Spezale, C. G., Predcton of Aerodynamc Flows wth a New Eplct Algebrac Stress Model, AIAA Jornal, Vol. 34, No. 1, December Sstanable Energy Combston Instabltes Near-wall fld strctres Strategy of nvestgaton Insttt für Verbrennngstechn - Insttte of Combston Technology 16

17 Detsches Zentrm für Lft- nd Ramfahrt e.v. Vahala, G., Vahala, L., Morrson, J., Krashennnov, S., and Sgmar, D., K-e Compressble 3D Netral Fld Trblence Modellng of the Effect of Torodal Cavtes on Flame-Front Propagaton n the Gas-Blanet Regme for Toama Dvertors, J. Plasma Physcs, Vol. 57, Part 1, 1997, pp Woodrff, S. L., Morrson, J. H., and Hssan, M. Y., Evalaton of Several Trblence Models n a Mltple- Element Arfol Comptaton, AIAA Paper , Janary Chenalt, C. F., Analyss of Trblence Models as Appled to Two- and Three-Dmensonal Inecton Flows, Ph.D. Dssertaton, Ar Force Insttte of Technology, March AFIT/DS/ENY/98M-01 Chenalt, C. F., Beran, P. S., and Bowerso, R. D. W., Second-Order Reynolds Stress Trblence Modelng of Three-Dmensonal Oblqe Spersonc Inecton, AIAA Paper , Jly Chenalt, C. F. and Beran, P. S., K-Epslon and Reynolds Stress Trblence Model Comparsons for Two- Dmensonal Inecton Flows, AIAA Jornal, Vol. 36, No. 8, pp , Agst Morrson, J. H., Nmercal Stdy of Trblence Model Predctons for the MD 30P/30N and the NHLP-D Three- Element Hghlft Confgratons, NASA CR , December Abstract PDF Postscrpt Chenalt, C. F., Beran, P. S., and Bowerso, R. D. W., Nmercal Investgaton of Spersonc Inecton sng a Reynolds-Stress Trblence Model, AIAA Jornal, Vol. 37, No. 10, October Woodrff, S. L., Sener, J. M., Hssan, M. Y., and Erlebacher, G., Evalaton of Trblence-Model Performance n Jet Flows, AIAA Jornal, Vol. 39, No. 1, December 001. Morrson, J. H., Panaras, A. G., Gats, T. B., and Georgantopolos, G. A., Analyss of Etensve Cross-Flow Separaton sng Hgher-Order RANS Closre Models, AIAA Paper , Jne 003. Abstract PDF Postscrpt Sstanable Energy Combston Instabltes Near-wall fld strctres Strategy of nvestgaton Insttt für Verbrennngstechn - Insttte of Combston Technology 17

18 18 Insttt für Verbrennngstechn - Insttte of Combston Technology Detsches Zentrm für Lft- nd Ramfahrt e.v. Sstanable Energy Combston Instabltes Near-wall fld strctres Strategy of nvestgaton Dt D ν Π P Fll Reynolds Stress Eqaton p p Π ρ 1 υ P t Dt D Dt D ), ( ), ( ), ( t t t r r r r r

Fluid Simulation Overview. Presentation Date: Sep 15 th, 2009 Chrissie C. Cui

Fluid Simulation Overview. Presentation Date: Sep 15 th, 2009 Chrissie C. Cui Fld Smlaton Overvew Presentaton Date: Sep 5 th, 2009 Chrsse C. C Introdcton Fld Characterstcs Otlne Naver-Stokes Eqaton Eleran vs. Lagragan approach Fld Smlaton Stages Sold Fld Coplng Read-tme flds Introdcton

More information

NUMERICAL BASIS OF CAD-EMBEDDED CFD

NUMERICAL BASIS OF CAD-EMBEDDED CFD NUMERICAL BASIS OF CAD-EMBEDDED CFD Dr. A. Sobachkn, Dr. G. Dmnov, (Mentor Graphcs Corporaton, Mechancal Analyss Dvson, Rssa) Dr. A. Sobachkn, Engneerng Manager THEME CAD CAE Integraton: Meshng & Integraton

More information

1. Introduction to CFD

1. Introduction to CFD . Introdcton to CFD Ths s a qck ntrodcton to the basc concepts nderlyng CFD. The concepts are llstrated by applyng them to a smple D example. We dscss the followng topcs brefly:. Applcatons of CFD. The

More information

Damage detection in composite laminates using coin-tap method

Damage detection in composite laminates using coin-tap method Damage detecton n composte lamnates usng con-tap method S.J. Km Korea Aerospace Research Insttute, 45 Eoeun-Dong, Youseong-Gu, 35-333 Daejeon, Republc of Korea yaeln@kar.re.kr 45 The con-tap test has the

More information

Warsaw University of Technology. Faculty of Electrical Engineering

Warsaw University of Technology. Faculty of Electrical Engineering Warsaw Unversty of Technology Faclty of Electrcal Engneerng Insttte of Control and Indstral Electroncs Ph.D. Thess M. Sc. Marsz Cchowlas! Thess spervsor Prof. Dr Sc. Maran P. Kamerkowsk Warsaw, Poland

More information

So far circuit analysis has been performed on single-

So far circuit analysis has been performed on single- Three phase systems ntrdctn S far crct analyss has been perfrmed n sngle- phase crcts,.e. there has been ne crct wth a nmber f dfferent vltage and crrent srces whch were nt synchrnsed n any prpsefl way.

More information

Computational Fluid Dynamics II

Computational Fluid Dynamics II Computatonal Flud Dynamcs II Eercse 2 1. Gven s the PDE: u tt a 2 ou Formulate the CFL-condton for two possble eplct schemes. 2. The Euler equatons for 1-dmensonal, unsteady flows s dscretsed n the followng

More information

Sharp-Crested Weir Discharge Coefficient

Sharp-Crested Weir Discharge Coefficient 2011, Scencelne Publcaton Journal of Cvl Engneerng and Urbansm Volume 3, Issue 3: 87-91 (2013) (Receved: December 13, 2012; Accepted: May 7, 2013; Publshed: May 30, 2013) ISSN-2252-0430 Sharp-Crested Wer

More information

The difference between voltage and potential difference

The difference between voltage and potential difference Slavko Vjevć 1, Tonć Modrć 1 and Dno Lovrć 1 1 Unversty of Splt, Faclty of electrcal engneerng, mechancal engneerng and naval archtectre Splt, Croata The dfference between voltage and potental dfference

More information

An Overview of Computational Fluid Dynamics

An Overview of Computational Fluid Dynamics An Overvew of Computatonal Flud Dynamcs Joel Ducoste Assocate Professor Department of Cvl, Constructon, and Envronmental Engneerng MBR Tranng Semnar Ghent Unversty July 15 17, 2008 Outlne CFD? What s that?

More information

Optimal Control Approach to Production Systems. with Inventory-Level-Dependent Demand

Optimal Control Approach to Production Systems. with Inventory-Level-Dependent Demand Optmal Control Approach to Prodcton Systems wth Inventory-Level-Dependent Demand Egene Khmelntsky and Ygal Gerchak Department of Indstral Engneerng, Tel-Avv Unversty, Tel-Avv 69978, Israel Fax: 97--647669,

More information

The Analysis of Outliers in Statistical Data

The Analysis of Outliers in Statistical Data THALES Project No. xxxx The Analyss of Outlers n Statstcal Data Research Team Chrysses Caron, Assocate Professor (P.I.) Vaslk Karot, Doctoral canddate Polychrons Economou, Chrstna Perrakou, Postgraduate

More information

Topical Workshop for PhD students Adsorption and Diffusion in MOFs Institut für Nichtklassische Chemie, Germany, www.uni-leipzig.

Topical Workshop for PhD students Adsorption and Diffusion in MOFs Institut für Nichtklassische Chemie, Germany, www.uni-leipzig. Gas Separaton and Purfcaton Measurement of Breakthrough Curves Topcal Workshop for PhD students Adsorpton and Dffuson n MOFs Adsorpton on Surfaces / Separaton effects Useful features Thermodynamc effect

More information

Modeling Turbulent Flows

Modeling Turbulent Flows Modelng Turbulent Flows Introductory FLUENT Tranng 2006 ANSYS, Inc. All rghts reserved. 2006 ANSYS, Inc. All rghts reserved. 6-2 What s Turbulence? Unsteady, rregular (aperodc) moton n whch transported

More information

GIS: data processing. 3.1.1. Example of spatial queries. 3.1 Spatial queries. Chapter III. Geographic Information Systems: Data Processing

GIS: data processing. 3.1.1. Example of spatial queries. 3.1 Spatial queries. Chapter III. Geographic Information Systems: Data Processing Vsal Informaton Systems Pr. Robert Larn GIS: data processng Chapter III Geographc Informaton Systems: Data Processng 3.1 Spatal qeres 3. Introdcton to Spatal nalyss 3.3 Spatal ndexng 3. Updatng 3. Conclsons

More information

Finite difference method

Finite difference method grd ponts x = mesh sze = X NÜÆ Fnte dfference method Prncple: dervatves n the partal dfferental eqaton are approxmated by lnear combnatons of fncton vales at the grd ponts 1D: Ω = (0, X), (x ), = 0,1,...,

More information

Sina Mirzaei Sefat TATALAMENTO E AUTORROTAÇÃO DE PLACA PLANA VERTICAL ARTICULADA INDUZIDOS POR CORRENTE UNIFORME

Sina Mirzaei Sefat TATALAMENTO E AUTORROTAÇÃO DE PLACA PLANA VERTICAL ARTICULADA INDUZIDOS POR CORRENTE UNIFORME TATALAMENTO E AUTORROTAÇÃO DE PLACA PLANA VERTICAL ARTICULADA INDUZIDOS POR CORRENTE UNIFORME Sna Mrzae Sefat Tese de Dotorado apresentada ao Programa de Pós-gradação em Engenhara Oceânca, COPPE, da Unversdade

More information

THE USE OF CFD TOOLS FOR INDOOR ENVIRONMENTAL DESIGN

THE USE OF CFD TOOLS FOR INDOOR ENVIRONMENTAL DESIGN Chen, Q. and Zha, Z. 24. "The use of CFD tools for ndoor envronmental desgn" Advanced Buldng Smulaton, Edted by A. Malkaw and G. Augenbroe, Spon Press, New York, pp. 9-4. THE USE OF CFD TOOLS FOR INDOOR

More information

Effect of Angular Velocity of Inner Cylinder on Laminar Flow through Eccentric Annular Cross Section Pipe

Effect of Angular Velocity of Inner Cylinder on Laminar Flow through Eccentric Annular Cross Section Pipe Asian Transactions on Engineering (ATE ISSN: -467) Volme 3 Isse Effect of Anglar Velocity of Inner Cylinder on Laminar Flow throgh Eccentric Annlar Cross Section Pipe Ressan Faris Hamd * Department of

More information

A Novel Self-Tuning Control Design Approach for Industrial Applications

A Novel Self-Tuning Control Design Approach for Industrial Applications A ovel Self-Tnng Control Desgn Approach for Indstral Applcatons Rchard J. Ecker and Zhqang Gao Department of Electrcal and Compter Engneerng Cleveland State Unversty, Cleveland, Oho 4445 Abstract: A real

More information

Actuator forces in CFD: RANS and LES modeling in OpenFOAM

Actuator forces in CFD: RANS and LES modeling in OpenFOAM Home Search Collectons Journals About Contact us My IOPscence Actuator forces n CFD: RANS and LES modelng n OpenFOAM Ths content has been downloaded from IOPscence. Please scroll down to see the full text.

More information

CFD MODELLING BY DHI. Statement of Qualifications

CFD MODELLING BY DHI. Statement of Qualifications Statement of Qualfcatons CFD Modellng by DHI/hkh/hec-ybr/pot/ShortDescrptons 08/10 CFD Modellng by DHI The capablty of understandng and nvestgatng the motons of lquds and gasses n detal s of great mportance

More information

Turbulence Models and Their Application to Complex Flows R. H. Nichols University of Alabama at Birmingham

Turbulence Models and Their Application to Complex Flows R. H. Nichols University of Alabama at Birmingham Turbulence Models and Ther Applcaton to Complex Flows R. H. Nchols Unversty of Alabama at Brmngham Revson 4.01 CONTENTS Page 1.0 Introducton 1.1 An Introducton to Turbulent Flow 1-1 1. Transton to Turbulent

More information

Rank Optimization of Personalized Search

Rank Optimization of Personalized Search Rank Optmzaton of Personalzed Search Ln LI Zhengl YANG Masar KITSUREGAWA Agmentng the global rankng based on the lnkage strctre of the Web s one of the poplar approaches n data engneerng commnty today

More information

Compaction of the diamond Ti 3 SiC 2 graded material by the high speed centrifugal compaction process

Compaction of the diamond Ti 3 SiC 2 graded material by the high speed centrifugal compaction process Archves of Materals Scence and Engneerng Volume 8 Issue November 7 Pages 677-68 Internatonal Scentfc Journal publshed monthly as the organ of the Commttee of Materals Scence of the Polsh Academy of Scences

More information

Quotes. Research Findings. The First Law of Thermodynamics. Introduction. Introduction. Thermodynamics Lecture Series

Quotes. Research Findings. The First Law of Thermodynamics. Introduction. Introduction. Thermodynamics Lecture Series 8//005 Quotes Thermodynamcs Lecture Seres Frst Law of Thermodynamcs & Control Mass, Open Appled Scences Educaton Research Group (ASERG) Faculty of Appled Scences Unverst Teknolog MARA emal: drjjlanta@hotmal.com

More information

Modeling and Analysis of 2D Service Differentiation on e-commerce Servers

Modeling and Analysis of 2D Service Differentiation on e-commerce Servers Modelng and Analyss of D Servce Dfferentaton on e-commerce Servers Xaobo Zhou, Unversty of Colorado, Colorado Sprng, CO zbo@cs.uccs.edu Janbn We and Cheng-Zhong Xu Wayne State Unversty, Detrot, Mchgan

More information

Numerical simulations of heat transfer in plane channel

Numerical simulations of heat transfer in plane channel Numerical simulations of heat transfer in plane channel flow Najla El Gharbi, Rafik Absi, Ahmed Benzaoui To cite this version: Najla El Gharbi, Rafik Absi, Ahmed Benzaoui. Numerical simulations of heat

More information

Health Insurance Estimates for Counties 1

Health Insurance Estimates for Counties 1 003 Jont Statstcal Meetngs - Secton on Srvey Research Methods Health Insrance Estmates for Contes 1 Robn Fsher and Joanna Trner U.S. Censs Brea, HHES-SAEB, FB 3 Room 146 Washngton, DC, 033 Phone: (301)

More information

Shielding Equations and Buildup Factors Explained

Shielding Equations and Buildup Factors Explained Sheldng Equatons and uldup Factors Explaned Gamma Exposure Fluence Rate Equatons For an explanaton of the fluence rate equatons used n the unshelded and shelded calculatons, vst ths US Health Physcs Socety

More information

Introduction. by a source term ( ) 242 / Vol. XXVIII, No. 2, April-June 2006 ABCM. Denise Maria V. Martinez et al

Introduction. by a source term ( ) 242 / Vol. XXVIII, No. 2, April-June 2006 ABCM. Denise Maria V. Martinez et al ρ ρ Dense Mara V. Martnez et al Dense Mara V. Martnez densevmartnez@yahoo.com.br Departamento de Matemátca Fundação Unversdade Federal do Ro Grande 9601-900 Ro Grande, RS, Brazl Edth Beatrz C. Schettn

More information

Piecewise affine approximation of nonlinear systems a case study of a benchmark nonlinear boiler

Piecewise affine approximation of nonlinear systems a case study of a benchmark nonlinear boiler Proeedngs of the 8th WSEAS Internatonal Conferene on SYSTEM SCIENCE and SIMULATION n ENGINEERING Peewse affne approxmaton of nonlnear sstems a ase std of a benhmark nonlnear boler RADEK HORÁLEK* AND JAROSLAV

More information

Primary Analysis of Effective Permeability of the Flame in Burning Natural Gas

Primary Analysis of Effective Permeability of the Flame in Burning Natural Gas Jornal of etals, aterials and inerals. Vol.7 No. pp.63-66. rimary Analysis of Effective ermeability of the Flame in Brning Natral Gas Rakoš JAROSAV * and Repasova AGDAENA * Department of Thermal Technology,

More information

SPEE Recommended Evaluation Practice #6 Definition of Decline Curve Parameters Background:

SPEE Recommended Evaluation Practice #6 Definition of Decline Curve Parameters Background: SPEE Recommended Evaluaton Practce #6 efnton of eclne Curve Parameters Background: The producton hstores of ol and gas wells can be analyzed to estmate reserves and future ol and gas producton rates and

More information

REDUCED-ORDER MODELING OF MULTISCALE TURBULENT CONVECTION: APPLICATION TO DATA CENTER THERMAL MANAGEMENT

REDUCED-ORDER MODELING OF MULTISCALE TURBULENT CONVECTION: APPLICATION TO DATA CENTER THERMAL MANAGEMENT REDUCED-ORDER MODELING OF MULTISCALE TURBULENT CONVECTION: APPLICATION TO DATA CENTER THERMAL MANAGEMENT A Dssertaton Presented to The Academc Faculty by Jeffrey D. Rambo In Partal Fulfllment of the Requrements

More information

A Spatial Model of the Impact of Bankruptcy Law on Entrepreneurship 1. Aparna Mathur 2 Department of Economics, University of Maryland at College Park

A Spatial Model of the Impact of Bankruptcy Law on Entrepreneurship 1. Aparna Mathur 2 Department of Economics, University of Maryland at College Park A Spatal Model of the Impact of Bankrptcy Law on Entreprenershp 1 Aparna Mathr 2 Department of Economcs, Unversty of Maryland at College Park Abstract Ths s the frst paper that hghlghts the role of spatal

More information

Capillary Electrophoresis

Capillary Electrophoresis Electrophoresis is a saration techniqe based on the differential transportation velocities of charged species in an electric field throgh a condctive medim. Capillary Electrophoresis Primary candidates

More information

Journal of Economics and Business

Journal of Economics and Business Journal of Economcs and Busness 64 (2012) 275 286 Contents lsts avalable at ScVerse ScenceDrect Journal of Economcs and Busness A multple adaptve wavelet recurrent neural networ model to analyze crude

More information

FI GERPRI T VERIFICATIO USI G OPTICAL SHIFTED PHASE- E CODED JOI T TRA SFORM CORRELATIO

FI GERPRI T VERIFICATIO USI G OPTICAL SHIFTED PHASE- E CODED JOI T TRA SFORM CORRELATIO FI GEPI VEIFICAIO USI G OPICAL SHIFED PHASE- E CODED JOI A SFOM COELAIO M. azrl Islam Emal: slamn@farmngdale.ed Secrt Sstems Farmngdale State Unerst of New York 350 Broad Hollow oad Farmngdale New York

More information

Descriptive Models. Cluster Analysis. Example. General Applications of Clustering. Examples of Clustering Applications

Descriptive Models. Cluster Analysis. Example. General Applications of Clustering. Examples of Clustering Applications CMSC828G Prncples of Data Mnng Lecture #9 Today s Readng: HMS, chapter 9 Today s Lecture: Descrptve Modelng Clusterng Algorthms Descrptve Models model presents the man features of the data, a global summary

More information

IMPACT ANALYSIS OF A CELLULAR PHONE

IMPACT ANALYSIS OF A CELLULAR PHONE 4 th ASA & μeta Internatonal Conference IMPACT AALYSIS OF A CELLULAR PHOE We Lu, 2 Hongy L Bejng FEAonlne Engneerng Co.,Ltd. Bejng, Chna ABSTRACT Drop test smulaton plays an mportant role n nvestgatng

More information

Numerical Analysis on Rapid Decompression in Conventional Dry Gases using One- Dimensional Mathematical Modeling

Numerical Analysis on Rapid Decompression in Conventional Dry Gases using One- Dimensional Mathematical Modeling World Academy of Scence, Engneerng and Technology Internatonal Journal of Mathematcal, Computatonal, Physcal, Electrcal and Computer Engneerng Vol:6, o:3, 01 umercal Analyss on Rapd Decompresson n Conventonal

More information

Marginal Returns to Education For Teachers

Marginal Returns to Education For Teachers The Onlne Journal of New Horzons n Educaton Volume 4, Issue 3 MargnalReturnstoEducatonForTeachers RamleeIsmal,MarnahAwang ABSTRACT FacultyofManagementand Economcs UnverstPenddkanSultan Idrs ramlee@fpe.ups.edu.my

More information

Development of a finite volume model for the compressible gap flow inside a screw pump

Development of a finite volume model for the compressible gap flow inside a screw pump Deeloment of a fnte olme model for the omressble ga flo nsde a sre m Dl.-Ing. (FH) Klas äbger rof. Dr..M.A. Masod rof. Dr. John Ward Unersty of Glamorgan Shool of ehnology Wales UK rof. Dr. G. Hasmann

More information

A Neural Network Predictive Model of Pipeline Internal Corrosion Profile

A Neural Network Predictive Model of Pipeline Internal Corrosion Profile 4 Frst Internatonal Conference on Systems Informatcs, Modellng and Smulaton A eural etwork Predctve Model of Ppelne Internal Corroson Profle Gula De Mas, Roberta Vch, Manuela Gentle, Roberto Brusch ADVE

More information

Context-aware Mobile Recommendation System Based on Context History

Context-aware Mobile Recommendation System Based on Context History TELKOMNIKA Indonesan Journal of Electrcal Engneerng Vol.12, No.4, Aprl 2014, pp. 3158 ~ 3167 DOI: http://dx.do.org/10.11591/telkomnka.v124.4786 3158 Context-aware Moble Recommendaton System Based on Context

More information

Effect of flow field on open channel flow properties using numerical investigation and experimental comparison

Effect of flow field on open channel flow properties using numerical investigation and experimental comparison INTERNATIONAL JOURNAL OF ENERGY AND ENVIRONMENT Volme 3, Isse 4, 2012 pp.617-628 Jornal homepage: www.ijee.ieefondation.org Effect of flow field on open channel flow properties sing nmerical investigation

More information

Sickness Absence in the UK: 1984-2002

Sickness Absence in the UK: 1984-2002 Sickness Absence in the UK: 1984-2002 Tim Barmby (Universy of Drham) Marco Ecolani (Universy of Birmingham) John Treble (Universy of Wales Swansea) Paper prepared for presentation at The Economic Concil

More information

Analysis of Reactivity Induced Accident for Control Rods Ejection with Loss of Cooling

Analysis of Reactivity Induced Accident for Control Rods Ejection with Loss of Cooling Analyss of Reactvty Induced Accdent for Control Rods Ejecton wth Loss of Coolng Hend Mohammed El Sayed Saad 1, Hesham Mohammed Mohammed Mansour 2 Wahab 1 1. Nuclear and Radologcal Regulatory Authorty,

More information

Spatial development of urban road network traffic gridlock

Spatial development of urban road network traffic gridlock Transportaton Spatal deelopent of rban road networ traffc grdloc H.S. Q, Y.Y, Dan Ha Wang, *, Y.M. Be Receed: October 3, Resed: Febrary 4, Accepted: Jne 4 Abstract Abstract: Grdloc s an extree traffc state

More information

Effect of a spectrum of relaxation times on the capillary thinning of a filament of elastic liquid

Effect of a spectrum of relaxation times on the capillary thinning of a filament of elastic liquid J. Non-Newtonan Flud Mech., 72 (1997) 31 53 Effect of a spectrum of relaxaton tmes on the capllary thnnng of a flament of elastc lqud V.M. Entov a, E.J. Hnch b, * a Laboratory of Appled Contnuum Mechancs,

More information

APPLICATION OF PROBE DATA COLLECTED VIA INFRARED BEACONS TO TRAFFIC MANEGEMENT

APPLICATION OF PROBE DATA COLLECTED VIA INFRARED BEACONS TO TRAFFIC MANEGEMENT APPLICATION OF PROBE DATA COLLECTED VIA INFRARED BEACONS TO TRAFFIC MANEGEMENT Toshhko Oda (1), Kochro Iwaoka (2) (1), (2) Infrastructure Systems Busness Unt, Panasonc System Networks Co., Ltd. Saedo-cho

More information

On-Line Fault Detection in Wind Turbine Transmission System using Adaptive Filter and Robust Statistical Features

On-Line Fault Detection in Wind Turbine Transmission System using Adaptive Filter and Robust Statistical Features On-Lne Fault Detecton n Wnd Turbne Transmsson System usng Adaptve Flter and Robust Statstcal Features Ruoyu L Remote Dagnostcs Center SKF USA Inc. 3443 N. Sam Houston Pkwy., Houston TX 77086 Emal: ruoyu.l@skf.com

More information

Life Goals of American College Freshmen

Life Goals of American College Freshmen Journal of Counselng Psychology Vol., No. 1, 66 Lfe Goals of Amercan College Freshmen I James M. Rchards, Jr. 1 Amercan College Testng Program In samples of 6,9 male and 6,3 female college freshmen, 35

More information

An RFID Distance Bounding Protocol

An RFID Distance Bounding Protocol An RFID Dstance Boundng Protocol Gerhard P. Hancke and Markus G. Kuhn May 22, 2006 An RFID Dstance Boundng Protocol p. 1 Dstance boundng Verfer d Prover Places an upper bound on physcal dstance Does not

More information

Final Draft of the original manuscript:

Final Draft of the original manuscript: Fnal Draft of the orgnal manuscrpt: Hegadekatte, V.; Kurzenhaeser, S.; Huber, N.; Kraft, O.: A predctve modelng scheme for wear n pn-on-dsc and twn-dsc trbometers In: Trbology Internatonal (2008) Elsever

More information

RESEARCH ON DUAL-SHAKER SINE VIBRATION CONTROL. Yaoqi FENG 1, Hanping QIU 1. China Academy of Space Technology (CAST) yaoqi.feng@yahoo.

RESEARCH ON DUAL-SHAKER SINE VIBRATION CONTROL. Yaoqi FENG 1, Hanping QIU 1. China Academy of Space Technology (CAST) yaoqi.feng@yahoo. ICSV4 Carns Australa 9- July, 007 RESEARCH ON DUAL-SHAKER SINE VIBRATION CONTROL Yaoq FENG, Hanpng QIU Dynamc Test Laboratory, BISEE Chna Academy of Space Technology (CAST) yaoq.feng@yahoo.com Abstract

More information

RISK MANAGEMENT OF UNCERTAIN INNOVATION PROJECT BASED ON BAYESIAN RISK DECISION

RISK MANAGEMENT OF UNCERTAIN INNOVATION PROJECT BASED ON BAYESIAN RISK DECISION Sept 201. Vol., o. 2012-201 EAAS & ARF. All rghts reserve www.eaas-ornal.org ISS20-8269 RISK MAAGEMET OF UCERTAI IOVATIO PROJECT BASED O BAYESIA RISK DECISIO Yngchn Go College of Mathematcs & Compter Seence,

More information

European Collaboration on Lead Cooled Nuclear Reactor Development

European Collaboration on Lead Cooled Nuclear Reactor Development European Collaboraton on Lead Cooled Nuclear Reactor Development Jerzy Cetnar Akadema Górnczo-Hutncza w Krakowe 7. Program Ramowy, Dzeń nformacyny Euratom Fsson 2010; Warszawa 8 XII 2009 1 Lead-cooled

More information

A DEVELOPMENT AND VERIFICATION OF DENSITY BASED SOLVER USING LU-SGS ALGORITHM IN OPENFOAM

A DEVELOPMENT AND VERIFICATION OF DENSITY BASED SOLVER USING LU-SGS ALGORITHM IN OPENFOAM A DEVELOPMENT AND VERIFICATION OF DENSITY BASED SOLVER USING LU-SGS ALGORITHM IN OPENFOAM Junghyun Kim*, Kyuhong Kim** *Korea Aerospace Research Institute(KARI), **Seoul National University Abstract A

More information

Low frequency road noise decomposition at wheel center on an roller bench

Low frequency road noise decomposition at wheel center on an roller bench Low frequency road nose decomposton at wheel center on an roller bench Arnaud GAUDIN, Jean Francos BENIGUEL To cte ths verson: Arnaud GAUDIN, Jean Francos BENIGUEL. Low frequency road nose decomposton

More information

Parameterisation of Cumulus Convection

Parameterisation of Cumulus Convection Parametersaton of Cmls Convecton Dmtr V. Mronov German Weather Servce, Research and Development, FE14, Offenbach am Man, Germany dmtr.mronov@dwd.de COSMO-CLM Tranng Corse, Langen, Germany, 14-17 Febrary

More information

Benchmarking COMSOL Multiphysics 3.5a CFD problems

Benchmarking COMSOL Multiphysics 3.5a CFD problems Presented at the COMSOL Conference 2009 Boston Benchmarking COMSOL Multiphysics 3.5a CFD problems Darrell W. Pepper Xiuling Wang* Nevada Center for Advanced Computational Methods University of Nevada Las

More information

SOME BRIEF FINITE ELEMENT MODELING NOTES

SOME BRIEF FINITE ELEMENT MODELING NOTES SOME BRIEF FINITE EEMENT MODEING NOTES (EXCERPTED FROM FINITE EEMENT MODEING NOTES B PETER AVITABIE) SO WHAT AM I TRING TO DO WHEN MAKING A FEM??? CONTINUOUS SOUTION DISCRETIED SOUTION MODEING ISSUES contnos

More information

IDENTIFICATION AND CONTROL OF A FLEXIBLE TRANSMISSION SYSTEM

IDENTIFICATION AND CONTROL OF A FLEXIBLE TRANSMISSION SYSTEM Abstract IDENTIFICATION AND CONTROL OF A FLEXIBLE TRANSMISSION SYSTEM Alca Esparza Pedro Dept. Sstemas y Automátca, Unversdad Poltécnca de Valenca, Span alespe@sa.upv.es The dentfcaton and control of a

More information

Fluid Flow Complexity in Fracture Networks: Analysis with Graph Theory and LBM

Fluid Flow Complexity in Fracture Networks: Analysis with Graph Theory and LBM Flud Flow Complexty n Fracture Networks: Analyss wth Graph Theory and LBM Ghaffar, H.O. Department of Cvl Engneerng and Lassonde Insttute, Unversty of Toronto, Toronto, Canada Nasser, M.H.B. Department

More information

Introductory Turbulence Modeling

Introductory Turbulence Modeling Inrodcory Trblence Modelng Lecres Noes by Ismal B. Cel Wes Vrgna nversy Mechancal & Aerospace Engneerng Dep..O. Bo 606 Morganown, WV 6506-606 December 999 TABLE OF CONTENT age TABLE OF CONTENT... NOMENCLATRE...v.0

More information

Published: 2003-01-01. Link to publication

Published: 2003-01-01. Link to publication A Thermodesorber for Onlne studes of Combuston Aerosols - Influence of partcle dameter, resdence tme and mass concentraton Dahl, Andreas; Pagels, Joakm Publshed: 2003-01-01 Lnk to publcaton Ctaton for

More information

Aeroacoustic simulation based on linearized Euler equations and stochastic sound source modelling

Aeroacoustic simulation based on linearized Euler equations and stochastic sound source modelling Aeroacoustic simulation based on linearized Euler equations and stochastic sound source modelling H. Dechipre a, M. Hartmann a, J. W Delfs b and R. Ewert b a Volkswagen AG, Brieffach 1777, 38436 Wolfsburg,

More information

TWO-DIMENSIONAL TRANSIENT RADIATIVE HEAT TRANSFER USING DISCRETE ORDINATES METHOD

TWO-DIMENSIONAL TRANSIENT RADIATIVE HEAT TRANSFER USING DISCRETE ORDINATES METHOD TWO-DIMENSIONAL TRANSIENT RADIATIVE HEAT TRANSFER USING DISCRETE ORDINATES METHOD Zhxong Guo and Sunl Kumar Department of Mechancal, Aerospace and Manufacturng Engneerng Polytechnc Unversty, 6 Metrotech

More information

Index terms: Open channel, velocity, depth.

Index terms: Open channel, velocity, depth. ISO 9001:008 Certfed Internatonal Journal of Engneerng Scence and Innovatve Technolog (IJESIT) olume 3 Issue 5 September 014 Mathematcal Model of the flud flow n Crcular Cross-sectonal Open Channels.N.

More information

CHAPTER 9 SECOND-LAW ANALYSIS FOR A CONTROL VOLUME. blank

CHAPTER 9 SECOND-LAW ANALYSIS FOR A CONTROL VOLUME. blank CHAPTER 9 SECOND-LAW ANALYSIS FOR A CONTROL VOLUME blank SONNTAG/BORGNAKKE STUDY PROBLEM 9-1 9.1 An deal steam turbne A steam turbne receves 4 kg/s steam at 1 MPa 300 o C and there are two ext flows, 0.5

More information

Risk-based Fatigue Estimate of Deep Water Risers -- Course Project for EM388F: Fracture Mechanics, Spring 2008

Risk-based Fatigue Estimate of Deep Water Risers -- Course Project for EM388F: Fracture Mechanics, Spring 2008 Rsk-based Fatgue Estmate of Deep Water Rsers -- Course Project for EM388F: Fracture Mechancs, Sprng 2008 Chen Sh Department of Cvl, Archtectural, and Envronmental Engneerng The Unversty of Texas at Austn

More information

ESTIMATION OF RELAXATION AND THERMALIZATION TIMES IN MICROSCALE HEAT TRANSFER MODEL

ESTIMATION OF RELAXATION AND THERMALIZATION TIMES IN MICROSCALE HEAT TRANSFER MODEL JOURNAL OF THEORETICAL AND APPLIED MECHANICS 51, 4, pp. 837-845, Warsaw 2013 ESTIMATION OF RELAXATION AND THERMALIZATION TIMES IN MICROSCALE HEAT TRANSFER MODEL Bohdan Mochnack Częstochowa Unversty of

More information

On the Equivalence Between a Commonly Used Correlation Coefficient and a Least Squares Function

On the Equivalence Between a Commonly Used Correlation Coefficient and a Least Squares Function On the Eqivalence Between a Commonly Used Correlation Coefficient and a Least Sqares Fnction Diane C. Jamrog George N. Phillips, Jr. Yin Zhang Janary 2003 (revised October 2003) Abstract Many objective

More information

High-order fundamental and general solutions of convection-diffusion equation and their applications with boundary particle method

High-order fundamental and general solutions of convection-diffusion equation and their applications with boundary particle method Hgh-order fndaental and general soltons of convecton-dffson eqaton and ther alcatons wth bondary artcle ethod W. Chen * Sla Research Laboratory, P. O. Bo. 34, 325 Lysaer, Norway E-al: wenc@sla.no (sbtted

More information

The Theory of HPLC. Band Broadening

The Theory of HPLC. Band Broadening The Theory of HPLC Band Broadenng Wherever you see ths symbol, t s mportant to access the on-lne course as there s nteractve materal that cannot be fully shown n ths reference manual. Ams and Objectves

More information

SPILL PALLETS & CONTAINMENT

SPILL PALLETS & CONTAINMENT SPILL PALLETS & CONTAINMENT SPILL CREW SPILL PALLETS & CONTAINMENT BUNDING. The safe storage, handlng and transportaton of drums, contaners, tanks, machnery and equpment n the workplace s essental n protectng

More information

CFD ANALYSIS OF RAE 2822 SUPERCRITICAL AIRFOIL AT TRANSONIC MACH SPEEDS

CFD ANALYSIS OF RAE 2822 SUPERCRITICAL AIRFOIL AT TRANSONIC MACH SPEEDS CFD ANALYSIS OF RAE 2822 SUPERCRITICAL AIRFOIL AT TRANSONIC MACH SPEEDS K.Harish Kumar 1, CH.Kiran Kumar 2, T.Naveen Kumar 3 1 M.Tech Thermal Engineering, Sanketika Institute of Technology & Management,

More information

Imperial College London

Imperial College London F. Fang 1, C.C. Pan 1, I.M. Navon 2, M.D. Pggott 1, G.J. Gorman 1, P.A. Allson 1 and A.J.H. Goddard 1 1 Appled Modellng and Computaton Group Department of Earth Scence and Engneerng Imperal College London,

More information

An Integrated Semantically Correct 2.5D Object Oriented TIN. Andreas Koch

An Integrated Semantically Correct 2.5D Object Oriented TIN. Andreas Koch An Integrated Semantcally Correct 2.5D Object Orented TIN Andreas Koch Unverstät Hannover Insttut für Photogrammetre und GeoInformaton Contents Introducton Integraton of a DTM and 2D GIS data Semantcs

More information

Ring structure of splines on triangulations

Ring structure of splines on triangulations www.oeaw.ac.at Rng structure of splnes on trangulatons N. Vllamzar RICAM-Report 2014-48 www.rcam.oeaw.ac.at RING STRUCTURE OF SPLINES ON TRIANGULATIONS NELLY VILLAMIZAR Introducton For a trangulated regon

More information

Effects of Extreme-Low Frequency Electromagnetic Fields on the Weight of the Hg at the Superconducting State.

Effects of Extreme-Low Frequency Electromagnetic Fields on the Weight of the Hg at the Superconducting State. Effects of Etreme-Low Frequency Electromagnetc Felds on the Weght of the at the Superconductng State. Fran De Aquno Maranhao State Unversty, Physcs Department, S.Lus/MA, Brazl. Copyrght 200 by Fran De

More information

Numerical Investigation for Aerodynamic Derivatives of Bridge Deck Using DES

Numerical Investigation for Aerodynamic Derivatives of Bridge Deck Using DES Send Orders for Reprnts to reprnts@bentamscence.ae 6 Te Open Cvl Engneerng Journal,, 8, 6- Open Access Numercal Investgaton for Aerodynamc Dervatves of Brdge Deck Usng Lu Ketong and Tang Apng Scool of

More information

WHITE PAPER. Filter Bandwidth Definition of the WaveShaper S-series Programmable Optical Processor

WHITE PAPER. Filter Bandwidth Definition of the WaveShaper S-series Programmable Optical Processor WHITE PAPER Filter andwidth Definition of the WaveShaper S-series 1 Introdction The WaveShaper family of s allow creation of ser-cstomized filter profiles over the C- or L- band, providing a flexible tool

More information

An Analysis of Dynamic Severity and Population Size

An Analysis of Dynamic Severity and Population Size An Analyss of Dynamc Severty and Populaton Sze Karsten Wecker Unversty of Stuttgart, Insttute of Computer Scence, Bretwesenstr. 2 22, 7565 Stuttgart, Germany, emal: Karsten.Wecker@nformatk.un-stuttgart.de

More information

STANDING WAVE TUBE TECHNIQUES FOR MEASURING THE NORMAL INCIDENCE ABSORPTION COEFFICIENT: COMPARISON OF DIFFERENT EXPERIMENTAL SETUPS.

STANDING WAVE TUBE TECHNIQUES FOR MEASURING THE NORMAL INCIDENCE ABSORPTION COEFFICIENT: COMPARISON OF DIFFERENT EXPERIMENTAL SETUPS. STADIG WAVE TUBE TECHIQUES FOR MEASURIG THE ORMAL ICIDECE ABSORPTIO COEFFICIET: COMPARISO OF DIFFERET EXPERIMETAL SETUPS. Angelo Farna (*), Patrzo Faust (**) (*) Dpart. d Ing. Industrale, Unverstà d Parma,

More information

DEGREES OF EQUIVALENCE IN A KEY COMPARISON 1 Thang H. L., Nguyen D. D. Vietnam Metrology Institute, Address: 8 Hoang Quoc Viet, Hanoi, Vietnam

DEGREES OF EQUIVALENCE IN A KEY COMPARISON 1 Thang H. L., Nguyen D. D. Vietnam Metrology Institute, Address: 8 Hoang Quoc Viet, Hanoi, Vietnam DEGREES OF EQUIVALECE I A EY COMPARISO Thang H. L., guyen D. D. Vetnam Metrology Insttute, Aress: 8 Hoang Quoc Vet, Hano, Vetnam Abstract: In an nterlaboratory key comparson, a ata analyss proceure for

More information

Jet Engine. Figure 1 Jet engine

Jet Engine. Figure 1 Jet engine Jet Engne Prof. Dr. Mustafa Cavcar Anadolu Unversty, School of Cvl Avaton Esksehr, urkey GROSS HRUS INAKE MOMENUM DRAG NE HRUS Fgure 1 Jet engne he thrust for a turboet engne can be derved from Newton

More information

Can Auto Liability Insurance Purchases Signal Risk Attitude?

Can Auto Liability Insurance Purchases Signal Risk Attitude? Internatonal Journal of Busness and Economcs, 2011, Vol. 10, No. 2, 159-164 Can Auto Lablty Insurance Purchases Sgnal Rsk Atttude? Chu-Shu L Department of Internatonal Busness, Asa Unversty, Tawan Sheng-Chang

More information

WORKING P A P E R. Price Variation in Markets with Homogeneous Goods: The Case of Medigap NICOLE MAESTAS MATHIS SCHROEDER DANA P.

WORKING P A P E R. Price Variation in Markets with Homogeneous Goods: The Case of Medigap NICOLE MAESTAS MATHIS SCHROEDER DANA P. WORKIG P A P E R Prce Varaton n Markets wth Homogeneos Goods: The Case of Medgap ICOLE MAETA MATHI CHROEDER DAA P. GOLDMA WR-504 Ths prodct s part of the RAD Labor and Poplaton workng paper seres. RAD

More information

CFD Based Air Flow and Contamination Modeling of Subway Stations

CFD Based Air Flow and Contamination Modeling of Subway Stations CFD Based Air Flow and Contamination Modeling of Subway Stations Greg Byrne Center for Nonlinear Science, Georgia Institute of Technology Fernando Camelli Center for Computational Fluid Dynamics, George

More information

Mobility Control with Local Views of Neighborhood in Mobile Networks

Mobility Control with Local Views of Neighborhood in Mobile Networks Moblty Control wth Local Vews of Neghborhood n Moble Networks Zhen Jang Je W Robert Klne Dept. of Compter Scence Dept. of Compter Sc. and Eng. Dept. of Compter Scence West Chester Unversty Florda Atlantc

More information

Convection Heat Transfer From Tube Banks in Crossflow: Analytical Approach

Convection Heat Transfer From Tube Banks in Crossflow: Analytical Approach AIAA 2005-0958 Convection Heat Transfer From Tube Banks in Crossflow: Analytical Approach M. M. Yovanovich, Fellow AIAA W. A. Khan J. R. Culham Microelectronics Heat Transfer Laboratory Department of Mechanical

More information

Development of an intelligent system for tool wear monitoring applying neural networks

Development of an intelligent system for tool wear monitoring applying neural networks of Achevements n Materals and Manufacturng Engneerng VOLUME 14 ISSUE 1-2 January-February 2006 Development of an ntellgent system for tool wear montorng applyng neural networks A. Antć a, J. Hodolč a,

More information

NUMERICAL INVESTIGATION OF AIR FLOW INSIDE AN OFFICE ROOM UNDER VARIOUS VENTILATION CONDITIONS

NUMERICAL INVESTIGATION OF AIR FLOW INSIDE AN OFFICE ROOM UNDER VARIOUS VENTILATION CONDITIONS PAMUKKALE ÜNİ VERSİ TESİ MÜHENDİ SLİ K FAKÜLTESİ PAMUKKALE UNIVERSITY ENGINEERING COLLEGE MÜHENDİ SLİ K B İ L İ MLERİ DERGİ S İ JOURNAL OF ENGINEERING SCIENCES YIL CİLT SAYI SAYFA : : 12 : 1 : 87-95 NUMERICAL

More information

Mathematical modeling of water quality in river systems. Case study: Jajrood river in Tehran - Iran

Mathematical modeling of water quality in river systems. Case study: Jajrood river in Tehran - Iran European Water 7/8: 3-, 009. 009 E.W. Publcatons Mathematcal modelng of water qualty n rver systems. Case study: Jajrood rver n Tehran - Iran S.A. Mrbagher, M. Abaspour and K.H. Zaman 3 Department of Cvl

More information

GUIDELINE. Guideline for the Selection of Engineering Services

GUIDELINE. Guideline for the Selection of Engineering Services GUIDELINE Gideline for the Selection of Engineering Services 1998 Mission Statement: To govern the engineering profession while enhancing engineering practice and enhancing engineering cltre Pblished by

More information

Experimental Study of the Light Dynamic Penetration Method to Test Shallow Fill of Coarse-sand in Subsoil Engineering

Experimental Study of the Light Dynamic Penetration Method to Test Shallow Fill of Coarse-sand in Subsoil Engineering ISGSR7 Frst Internatonal Symposum on Geotechncal Safety & Rsk Oct. 8~9, 7 Shangha Tongj Unversty, Chna Expermental Study of the Lght Dynamc Penetraton Method to Test Shallow Fll of Coarse-sand n Subsol

More information