2.4.2: Highly Loaded Compressor Blades

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "2.4.2: Highly Loaded Compressor Blades"

Transcription

1 2003 NASA/DoD UAPT PROGRAM ANNUAL REVIEW URETI on Aeropropulsion and Power Technology Sponsored by NASA and DoD 2.4.2: Highly Loaded Compressor Dr. Lakshmi Sankar (UAPT PI) Mr. Vishwas Iyengar(GRA) School of Aerospace Engineering 2003 Annual Review At Georgia Tech September 24-25, 2003

2 Overview Research Objectives Approach Results during the Reporting Period Collaboration Publications Concluding Remarks

3 Research Objectives Explore active and passive means of achieving very high pressure ratios in compressors. Passive Techniques include: Design of Compressor using a Multi-Disciplinary Approach, taking into account the uncertainties in the operating conditions as well as numerical models. This is being done in collaboration with Task 2.1. Recirculation Control End Wall Treatment Active Control Techniques include: Actively controlled bleeding Synthetic and/or pulsed jets Trailing Edge Blowing

4 Approach A spatially high order 3-D unsteady compressible flow solver is being used. An implicit time marching scheme is being used, to ensure time-accurate solutions may be obtained. The algorithm has been parallelized for shared memory machines (e.g., SGI Origin) as well as distributed processors/clusters. This solver has been extensively validated for helicopter rotors, wind turbines, propfans, and fixed wing configurations. Our goal is to understand and evaluate the physical phenomena of interest, rather than development of yet another CFD code.

5 Results Obtained During the Past Year Validated NASA Rotor 37 and NASA Rotor 67 configuration. This was done in collaboration with Task 2.1. Identified regions where stall and surge are likely for the Rotor 67 configuration. Implemented Recirculation control model. Obtained preliminary results for recirculation control of Rotor 67.

6 Grid: 60x36x21 5 points in the clearance gap Tip Clearance Gap was modeled with periodic boundary condition. Rotor 37 Configuration

7 Rotor 37 Performance Map (Design RPM) Total Pressure Ratio Measured characteristic performance map at Design Speed (Rotor 37) Mass Flow Rate (kg/sec) Experimental Rotor 37 (Design Speed) Computed Design Speed = RPM Experimental results obtained from Bright et. al.- NASA Glenn.

8 Rotor 37 Performance Map (70% Design RPM) Computed and Measured characterstic performance map at 70% design speed (Rotor 37) 1.6 Total Pressure Ratio Mass Flow Rate (kg/sec) Computed Experimental

9 Rotor 67 Configuration Rotor 67 grid has 125 cells in the streamwise direction, 63 and 41 cells in the radial and circumferential directions, respectively. The clearance gap was spanned by six cells in the radial direction. Design rotational speed = RPM, tip leading edge speed is 429 m/sec Tip relative Mach number 1.38.

10 Rotor 67 Performance at Off-Design Conditions Performance Map for a NASA Rotor Unstable Operating Points Total Pressure Ratio CFD Results Mass-flow Rate (kg/sec)

11 Variation of Mass Flow Rate vs. Pressure Ratio for Rotor 67 under High Mass Flow Rate Conditions Massflow Rate Vs Pressure Fluctuation % Total Pressure Ratio 25 mdot=30.25 kg/sec % Massflow Rate Massflow Rate vs Pressure Fluctuation % Total Pressure Ratio 25 mdot=32 kg/sec % Massflow Rate

12 Rotor 67 Behavior under Off-Design Conditions Massflow Rate Vs Pressure Fluctuation % Total Pressure Ratio Increasing variations in mass flow rate and pressure ratio % Ma ssflow Ra te mdot=29.5 kg/sec

13 Recirculation Control Concept Recirculation Treatment Concept: Recently studied by Hathaway (2002). Injection Bleed m 2 m 1 Case In Flow Rotor Hub

14 Recirculation Control Approach (contd.) The model requires both the injected and the bleed mass flow rates to be the same. The injected fluid is directed to lie along the casing endwall to energize the low momentum fluid. The injection port is located just upstream of the region of low momentum fluid.

15 Recirculation (contd.) 4-5 % of prescribed mass flow rate is bled. The bleed valve removed some air from the compressor, as specified by. m b = K b A b p K b is the bleed valve constant and is related to the valve geometry A b is the bleed port cross sectional area p is the pressure drop across the bleed valve.

16 Stable Operation Using Recirculation Recirculation was found to achieve stable operation of the compressor at off-design conditions Massflow Rate Vs Pressure Fluctuations (With Control) Control Controlled No Control % Total Pressure ratio Uncontrolled % Massflow Rate

17 Collaboration We requested and received a grid generator (TCGRID) from Dr. Rod Chima of NASA Glenn Research Center. We have briefed: Alex Stein of GE Power Systems Dennis Huff and Rakesh Srivastava of NASA Glenn Dr. Hall and Dr. Gupta of GE Corporate Research Center Peter Lorber and Alan Egolf of United Technologies Research Center/Sikorsky.

18 Publications A paper on our recirculation control work has been accepted for publication at the AIAA Aerospace Sciences Meeting in Reno, NV, January A Master s degree special problem report on validation studies is being prepared in collaboration with Task 2.1.

19 Future Plans Task Schedule: Task Identification of Concepts, configurations Systematic Evaluation of Concepts Applications to multi-stage rotors Final Report Yr 1Yr 2Yr 3Yr 4 Yr 5

Relevance of Modern Optimization Methods in Turbo Machinery Applications

Relevance of Modern Optimization Methods in Turbo Machinery Applications Relevance of Modern Optimization Methods in Turbo Machinery Applications - From Analytical Models via Three Dimensional Multidisciplinary Approaches to the Optimization of a Wind Turbine - Prof. Dr. Ing.

More information

CFD Lab Department of Engineering The University of Liverpool

CFD Lab Department of Engineering The University of Liverpool Development of a CFD Method for Aerodynamic Analysis of Large Diameter Horizontal Axis wind turbines S. Gomez-Iradi, G.N. Barakos and X. Munduate 2007 joint meeting of IEA Annex 11 and Annex 20 Risø National

More information

Science Insights: An International Journal

Science Insights: An International Journal Available online at http://www.urpjournals.com Science Insights: An International Journal Universal Research Publications. All rights reserved Original Article CENTRIFUGAL COMPRESSOR FLUID FLOW ANALYSIS

More information

COMPUTATIONAL FLUID DYNAMICS (CFD) ANALYSIS OF INTERMEDIATE PRESSURE STEAM TURBINE

COMPUTATIONAL FLUID DYNAMICS (CFD) ANALYSIS OF INTERMEDIATE PRESSURE STEAM TURBINE Research Paper ISSN 2278 0149 www.ijmerr.com Vol. 3, No. 4, October, 2014 2014 IJMERR. All Rights Reserved COMPUTATIONAL FLUID DYNAMICS (CFD) ANALYSIS OF INTERMEDIATE PRESSURE STEAM TURBINE Shivakumar

More information

Aerodynamic Department Institute of Aviation. Adam Dziubiński CFD group FLUENT

Aerodynamic Department Institute of Aviation. Adam Dziubiński CFD group FLUENT Adam Dziubiński CFD group IoA FLUENT Content Fluent CFD software 1. Short description of main features of Fluent 2. Examples of usage in CESAR Analysis of flow around an airfoil with a flap: VZLU + ILL4xx

More information

Design and testing of a high flow coefficient mixed flow impeller

Design and testing of a high flow coefficient mixed flow impeller Design and testing of a high flow coefficient mixed flow impeller H.R. Hazby PCA Engineers Ltd., UK M.V. Casey PCA Engineers Ltd., UK University of Stuttgart (ITSM), Germany R. Numakura and H. Tamaki IHI

More information

Executive summary. Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR

Executive summary. Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR UNCLASSIFIED Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR Executive summary Engine performance prediction for varied low pressure turbine vane geometry utilizing test rig

More information

TIME-ACCURATE SIMULATION OF THE FLOW AROUND THE COMPLETE BO105 WIND TUNNEL MODEL

TIME-ACCURATE SIMULATION OF THE FLOW AROUND THE COMPLETE BO105 WIND TUNNEL MODEL TIME-ACCURATE SIMULATION OF THE FLOW AROUND THE COMPLETE BO105 WIND TUNNEL MODEL Walid Khier, Thorsten Schwarz, Jochen Raddatz presented by Andreas Schütte DLR, Institute of Aerodynamics and Flow Technology

More information

The Design & Analysis of a Low NPSH Centrifugal Pump Featuring a Radial Inlet and Axial Inducer Using STAR-CCM+

The Design & Analysis of a Low NPSH Centrifugal Pump Featuring a Radial Inlet and Axial Inducer Using STAR-CCM+ The Design & Analysis of a Low NPSH Centrifugal Pump Featuring a Radial Inlet and Axial Inducer Using STAR-CCM+ Edward M Bennett Travis A Jonas Mechanical Solutions 11 Apollo Drive Whippany, NJ 07981 March

More information

CFD Analysis of Swept and Leaned Transonic Compressor Rotor

CFD Analysis of Swept and Leaned Transonic Compressor Rotor CFD Analysis of Swept and Leaned Transonic Compressor Nivin Francis #1, J. Bruce Ralphin Rose *2 #1 Student, Department of Aeronautical Engineering& Regional Centre of Anna University Tirunelveli India

More information

NUMERICAL ANALYSIS OF WELLS TURBINE FOR WAVE POWER CONVERSION

NUMERICAL ANALYSIS OF WELLS TURBINE FOR WAVE POWER CONVERSION Engineering Review Vol. 32, Issue 3, 141-146, 2012. 141 NUMERICAL ANALYSIS OF WELLS TURBINE FOR WAVE POWER CONVERSION Z. 1* L. 1 V. 2 M. 1 1 Department of Fluid Mechanics and Computational Engineering,

More information

CFD SUPPORT FOR JET NOISE REDUCTION CONCEPT DESIGN AND EVALUATION FOR F/A 18 E/F AIRCRAFT

CFD SUPPORT FOR JET NOISE REDUCTION CONCEPT DESIGN AND EVALUATION FOR F/A 18 E/F AIRCRAFT CFD SUPPORT FOR JET NOISE REDUCTION CONCEPT DESIGN AND EVALUATION FOR F/A 18 E/F AIRCRAFT S.M. Dash, D.C. Kenzakowski, and C. Kannepalli Combustion Research and Flow Technology, Inc. (CRAFT Tech ) 174

More information

CFD Simulation of the NREL Phase VI Rotor

CFD Simulation of the NREL Phase VI Rotor CFD Simulation of the NREL Phase VI Rotor Y. Song* and J. B. Perot # *Theoretical & Computational Fluid Dynamics Laboratory, Department of Mechanical & Industrial Engineering, University of Massachusetts

More information

THE EVOLUTION OF TURBOMACHINERY DESIGN (METHODS) Parsons 1895

THE EVOLUTION OF TURBOMACHINERY DESIGN (METHODS) Parsons 1895 THE EVOLUTION OF TURBOMACHINERY DESIGN (METHODS) Parsons 1895 Rolls-Royce 2008 Parsons 1895 100KW Steam turbine Pitch/chord a bit too low. Tip thinning on suction side. Trailing edge FAR too thick. Surface

More information

Simulation at Aeronautics Test Facilities A University Perspective Helen L. Reed, Ph.D., P.E. ASEB meeting, Irvine CA 15 October 2014 1500-1640

Simulation at Aeronautics Test Facilities A University Perspective Helen L. Reed, Ph.D., P.E. ASEB meeting, Irvine CA 15 October 2014 1500-1640 Simulation at Aeronautics Test A University Perspective Helen L. Reed, Ph.D., P.E. ASEB meeting, Irvine CA 15 October 2014 1500-1640 Questions How has the ability to do increasingly accurate modeling and

More information

University Turbine Systems Research 2012 Fellowship Program Final Report. Prepared for: General Electric Company

University Turbine Systems Research 2012 Fellowship Program Final Report. Prepared for: General Electric Company University Turbine Systems Research 2012 Fellowship Program Final Report Prepared for: General Electric Company Gas Turbine Aerodynamics Marion Building 300 Garlington Rd Greenville, SC 29615, USA Prepared

More information

ME6130 An introduction to CFD 1-1

ME6130 An introduction to CFD 1-1 ME6130 An introduction to CFD 1-1 What is CFD? Computational fluid dynamics (CFD) is the science of predicting fluid flow, heat and mass transfer, chemical reactions, and related phenomena by solving numerically

More information

COMPUTATIONAL ANALYSIS OF CENTRIFUGAL COMPRESSOR WITH GROOVES ON CASING

COMPUTATIONAL ANALYSIS OF CENTRIFUGAL COMPRESSOR WITH GROOVES ON CASING INTERNATIONAL JOURNAL OF MECHANICAL ENGINEERING AND TECHNOLOGY (IJMET) International Journal of Mechanical Engineering and Technology (IJMET), ISSN 0976 6340(Print), ISSN ISSN 0976 6340 (Print) ISSN 0976

More information

Computational Fluid Dynamics Research Projects at Cenaero (2011)

Computational Fluid Dynamics Research Projects at Cenaero (2011) Computational Fluid Dynamics Research Projects at Cenaero (2011) Cenaero (www.cenaero.be) is an applied research center focused on the development of advanced simulation technologies for aeronautics. Located

More information

OMICS Group International is an amalgamation of Open Access publications

OMICS Group International is an amalgamation of Open Access publications About OMICS Group OMICS Group International is an amalgamation of Open Access publications and worldwide international science conferences and events. Established in the year 2007 with the sole aim of

More information

TwinMesh for Positive Displacement Machines: Structured Meshes and reliable CFD Simulations

TwinMesh for Positive Displacement Machines: Structured Meshes and reliable CFD Simulations TwinMesh for Positive Displacement Machines: Structured Meshes and reliable CFD Simulations 05.06.2014 Dipl.-Ing. Jan Hesse, Dr. Andreas Spille-Kohoff CFX Berlin Software GmbH Karl-Marx-Allee 90 A 10243

More information

TwinMesh Grid Generator and CFD Simulation with ANSYS CFX

TwinMesh Grid Generator and CFD Simulation with ANSYS CFX TwinMesh Grid Generator and CFD Simulation with ANSYS CFX 2nd Short Course on CFD in Rotary Positive Displacement Machines London, 5th 6th September 2015 Dr. Andreas Spille-Kohoff Jan Hesse Rainer Andres

More information

CFD simulations of flow over NASA Trap Wing Model

CFD simulations of flow over NASA Trap Wing Model CFD simulations of flow over NASA Trap Wing Model Andy Luo Swift Engineering Pravin Peddiraju, Vangelis Skaperdas BETA CAE Systems Introduction A cooperative study was undertaken by BETA and Swift Engineering

More information

A New Solution Adaption Capability for the OVERFLOW CFD Code

A New Solution Adaption Capability for the OVERFLOW CFD Code A New Solution Adaption Capability for the OVERFLOW CFD Code Pieter G. Buning NASA Langley Research Center, Hampton, VA 10 th Symposium on Overset Composite Grid and Solution Technology September 20-23,

More information

Analysis of the entire surge cycle of a multi-stage high-speed compressor

Analysis of the entire surge cycle of a multi-stage high-speed compressor Center for Turbulence Research Annual Research Briefs 2008 205 Analysis of the entire surge cycle of a multi-stage high-speed compressor By S. Teramoto 1. Motivation and objectives Both surge and rotating

More information

Circulation Control NASA activities

Circulation Control NASA activities National Aeronautics and Space Administration Circulation Control NASA activities Dr. Gregory S. Jones Dr. William E. Millholen II Research Engineers NASA Langley Research Center Active High Lift and Impact

More information

Pushing the limits. Turbine simulation for next-generation turbochargers

Pushing the limits. Turbine simulation for next-generation turbochargers Pushing the limits Turbine simulation for next-generation turbochargers KWOK-KAI SO, BENT PHILLIPSEN, MAGNUS FISCHER Computational fluid dynamics (CFD) has matured and is now an indispensable tool for

More information

Keywords: CFD, heat turbomachinery, Compound Lean Nozzle, Controlled Flow Nozzle, efficiency.

Keywords: CFD, heat turbomachinery, Compound Lean Nozzle, Controlled Flow Nozzle, efficiency. CALCULATION OF FLOW CHARACTERISTICS IN HEAT TURBOMACHINERY TURBINE STAGE WITH DIFFERENT THREE DIMENSIONAL SHAPE OF THE STATOR BLADE WITH ANSYS CFX SOFTWARE A. Yangyozov *, R. Willinger ** * Department

More information

Introduction to CFD Analysis

Introduction to CFD Analysis Introduction to CFD Analysis 2-1 What is CFD? Computational Fluid Dynamics (CFD) is the science of predicting fluid flow, heat and mass transfer, chemical reactions, and related phenomena by solving numerically

More information

XFlow CFD results for the 1st AIAA High Lift Prediction Workshop

XFlow CFD results for the 1st AIAA High Lift Prediction Workshop XFlow CFD results for the 1st AIAA High Lift Prediction Workshop David M. Holman, Dr. Monica Mier-Torrecilla, Ruddy Brionnaud Next Limit Technologies, Spain THEME Computational Fluid Dynamics KEYWORDS

More information

CFD Analysis of Civil Transport Aircraft

CFD Analysis of Civil Transport Aircraft IJSRD - International Journal for Scientific Research & Development Vol. 3, Issue 06, 2015 ISSN (online): 2321-0613 CFD Analysis of Civil Transport Aircraft Parthsarthi A Kulkarni 1 Dr. Pravin V Honguntikar

More information

Compressor and turbines

Compressor and turbines Compressor and turbines In this chapter, we will look at the compressor and the turbine. They are both turbomachinery: machines that transfer energy from a rotor to a fluid, or the other way around. The

More information

Fluent Software Training TRN Boundary Conditions. Fluent Inc. 2/20/01

Fluent Software Training TRN Boundary Conditions. Fluent Inc. 2/20/01 Boundary Conditions C1 Overview Inlet and Outlet Boundaries Velocity Outline Profiles Turbulence Parameters Pressure Boundaries and others... Wall, Symmetry, Periodic and Axis Boundaries Internal Cell

More information

Simulation of Fluid-Structure Interactions in Aeronautical Applications

Simulation of Fluid-Structure Interactions in Aeronautical Applications Simulation of Fluid-Structure Interactions in Aeronautical Applications Martin Kuntz Jorge Carregal Ferreira ANSYS Germany D-83624 Otterfing Martin.Kuntz@ansys.com December 2003 3 rd FENET Annual Industry

More information

Heat Transfer and Flow on the Blade Tip of a Gas Turbine Equipped With a Mean-Camberline Strip

Heat Transfer and Flow on the Blade Tip of a Gas Turbine Equipped With a Mean-Camberline Strip 2001 GT 0156 Heat Transfer and Flow on the Blade Tip of a Gas Turbine Equipped With a Mean-Camberline Strip A.A. Ameri AYT Corporation, Brook Park, Ohio May 2001 The NASA STI Program Office... in Profile

More information

Aeroelastic Investigation of the Sandia 100m Blade Using Computational Fluid Dynamics

Aeroelastic Investigation of the Sandia 100m Blade Using Computational Fluid Dynamics Aeroelastic Investigation of the Sandia 100m Blade Using Computational Fluid Dynamics David Corson Altair Engineering, Inc. Todd Griffith Sandia National Laboratories Tom Ashwill (Retired) Sandia National

More information

Introduction to CFD Analysis

Introduction to CFD Analysis Introduction to CFD Analysis Introductory FLUENT Training 2006 ANSYS, Inc. All rights reserved. 2006 ANSYS, Inc. All rights reserved. 2-2 What is CFD? Computational fluid dynamics (CFD) is the science

More information

CONVERGE Features, Capabilities and Applications

CONVERGE Features, Capabilities and Applications CONVERGE Features, Capabilities and Applications CONVERGE CONVERGE The industry leading CFD code for complex geometries with moving boundaries. Start using CONVERGE and never make a CFD mesh again. CONVERGE

More information

Use of OpenFoam in a CFD analysis of a finger type slug catcher. Dynaflow Conference 2011 January 13 2011, Rotterdam, the Netherlands

Use of OpenFoam in a CFD analysis of a finger type slug catcher. Dynaflow Conference 2011 January 13 2011, Rotterdam, the Netherlands Use of OpenFoam in a CFD analysis of a finger type slug catcher Dynaflow Conference 2011 January 13 2011, Rotterdam, the Netherlands Agenda Project background Analytical analysis of two-phase flow regimes

More information

Toward Zero Sonic-Boom and High Efficiency. Supersonic Bi-Directional Flying Wing

Toward Zero Sonic-Boom and High Efficiency. Supersonic Bi-Directional Flying Wing AIAA Paper 2010-1013 Toward Zero Sonic-Boom and High Efficiency Supersonic Flight: A Novel Concept of Supersonic Bi-Directional Flying Wing Gecheng Zha, Hongsik Im, Daniel Espinal University of Miami Dept.

More information

Practice Problems on Boundary Layers. Answer(s): D = 107 N D = 152 N. C. Wassgren, Purdue University Page 1 of 17 Last Updated: 2010 Nov 22

Practice Problems on Boundary Layers. Answer(s): D = 107 N D = 152 N. C. Wassgren, Purdue University Page 1 of 17 Last Updated: 2010 Nov 22 BL_01 A thin flat plate 55 by 110 cm is immersed in a 6 m/s stream of SAE 10 oil at 20 C. Compute the total skin friction drag if the stream is parallel to (a) the long side and (b) the short side. D =

More information

Platform Technology for Computational Fluid Dynamics Supporting Design of System Products

Platform Technology for Computational Fluid Dynamics Supporting Design of System Products Hitachi Review Vol. 61 (2012), No. 6 244 Platform Technology for Computational Fluid Dynamics Supporting Design of System Products from Power Plants and Industrial Machinery to Home Appliances Shigehisa

More information

Module 6 Case Studies

Module 6 Case Studies Module 6 Case Studies 1 Lecture 6.1 A CFD Code for Turbomachinery Flows 2 Development of a CFD Code The lecture material in the previous Modules help the student to understand the domain knowledge required

More information

Knowledge Based Aerodynamic Optimization

Knowledge Based Aerodynamic Optimization 4th SST CFD Workshop Tokyo, 12-13 Oct 26 Knowledge Based Aerodynamic Optimization Helmut Sobieczky DLR German Aerospace Center Bunsenstr. 1, 3773 Göttingen, Germany e-mail: helmut.sobieczky@dlr.de... internet:

More information

DYNAMIC LOAD BALANCING APPLICATIONS ON A HETEROGENEOUS UNIX/NT CLUSTER

DYNAMIC LOAD BALANCING APPLICATIONS ON A HETEROGENEOUS UNIX/NT CLUSTER European Congress on Computational Methods in Applied Sciences and Engineering ECCOMAS 2000 Barcelona, 11-14 September 2000 ECCOMAS DYNAMIC LOAD BALANCING APPLICATIONS ON A HETEROGENEOUS UNIX/NT CLUSTER

More information

CFD Analysis of Supersonic Exhaust Diffuser System for Higher Altitude Simulation

CFD Analysis of Supersonic Exhaust Diffuser System for Higher Altitude Simulation Page1 CFD Analysis of Supersonic Exhaust Diffuser System for Higher Altitude Simulation ABSTRACT Alan Vincent E V P G Scholar, Nehru Institute of Engineering and Technology, Coimbatore Tamil Nadu A high

More information

Comparison between OpenFOAM CFD & BEM theory for variable speed variable pitch HAWT

Comparison between OpenFOAM CFD & BEM theory for variable speed variable pitch HAWT ITM Web of Conferences 2, 05001 (2014) DOI: 10.1051/itmconf/20140205001 C Owned by the authors, published by EDP Sciences, 2014 Comparison between OpenFOAM CFD & BEM theory for variable speed variable

More information

DEVELOPMENT OF A TWIN SCREW EXPRESSOR AS A THROTTLE VALVE REPLACEMENT FOR WATER-COOLED CHILLERS

DEVELOPMENT OF A TWIN SCREW EXPRESSOR AS A THROTTLE VALVE REPLACEMENT FOR WATER-COOLED CHILLERS DEVELOPMENT OF A TWIN SCREW EXPRESSOR AS A THROTTLE VALVE REPLACEMENT FOR WATER-COOLED CHILLERS J J Brasz, Carrier Corporation, Syracuse, NY, 13221, USA joost.j.brasz@carrier.utc.com I K Smith and N Stosic

More information

PyFR: Bringing Next Generation Computational Fluid Dynamics to GPU Platforms

PyFR: Bringing Next Generation Computational Fluid Dynamics to GPU Platforms PyFR: Bringing Next Generation Computational Fluid Dynamics to GPU Platforms P. E. Vincent! Department of Aeronautics Imperial College London! 25 th March 2014 Overview Motivation Flux Reconstruction Many-Core

More information

Application of CFD Simulation in the Design of a Parabolic Winglet on NACA 2412

Application of CFD Simulation in the Design of a Parabolic Winglet on NACA 2412 , July 2-4, 2014, London, U.K. Application of CFD Simulation in the Design of a Parabolic Winglet on NACA 2412 Arvind Prabhakar, Ayush Ohri Abstract Winglets are angled extensions or vertical projections

More information

Performance Comparison of a Vertical Axis Wind Turbine using Commercial and Open Source Computational Fluid Dynamics based Codes

Performance Comparison of a Vertical Axis Wind Turbine using Commercial and Open Source Computational Fluid Dynamics based Codes Performance Comparison of a Vertical Axis Wind Turbine using Commercial and Open Source Computational Fluid Dynamics based Codes Taimoor Asim 1, Rakesh Mishra 1, Sree Nirjhor Kaysthagir 1, Ghada Aboufares

More information

Axial Flow Compressor Mean Line Design

Axial Flow Compressor Mean Line Design Axial Flow Compressor Mean Line Design Niclas Falck February 2008 Master Thesis Division of Thermal Power Engineering Department of Energy Sciences Lund University, Sweden Niclas Falck 2008 ISSN 0282-1990

More information

2. Parallel pump system Q(pump) = 300 gpm, h p = 270 ft for each of the two pumps

2. Parallel pump system Q(pump) = 300 gpm, h p = 270 ft for each of the two pumps Pumping Systems: Parallel and Series Configurations For some piping system designs, it may be desirable to consider a multiple pump system to meet the design requirements. Two typical options include parallel

More information

EXPERIMENTAL RESEARCH ON FLOW IN A 5-STAGE HIGH PRESSURE ROTOR OF 1000 MW STEAM TURBINE

EXPERIMENTAL RESEARCH ON FLOW IN A 5-STAGE HIGH PRESSURE ROTOR OF 1000 MW STEAM TURBINE Proceedings of 11 th European Conference on Turbomachinery Fluid dynamics & Thermodynamics ETC11, March 23-27, 2015, Madrid, Spain EXPERIMENTAL RESEARCH ON FLOW IN A 5-STAGE HIGH PRESSURE ROTOR OF 1000

More information

Modelling and CFD Analysis of Single Stage IP Steam Turbine

Modelling and CFD Analysis of Single Stage IP Steam Turbine International Journal of Mechanical Engineering, ISSN:2051-3232, Vol.42, Issue.1 1215 Modelling and CFD Analysis of Single Stage IP Steam Turbine C RAJESH BABU Mechanical Engineering Department, Gitam

More information

INLET AND EXAUST NOZZLES Chap. 10 AIAA AIRCRAFT ENGINE DESIGN R01-07/11/2011

INLET AND EXAUST NOZZLES Chap. 10 AIAA AIRCRAFT ENGINE DESIGN R01-07/11/2011 MASTER OF SCIENCE IN AEROSPACE ENGINEERING PROPULSION AND COMBUSTION INLET AND EXAUST NOZZLES Chap. 10 AIAA AIRCRAFT ENGINE DESIGN R01-07/11/2011 LECTURE NOTES AVAILABLE ON https://www.ingegneriaindustriale.unisalento.it/scheda_docente/-/people/antonio.ficarella/materiale

More information

Experimental and Numerical Investigation of Blades Slots on Rotating Stall Phenomenon in Centrifugal Blower

Experimental and Numerical Investigation of Blades Slots on Rotating Stall Phenomenon in Centrifugal Blower Universal Journal of Engineering Science 3(2): 24-37, 2015 DOI: 10.13189/ujes.2015.030203 http://www.hrpub.org Experimental and Numerical Investigation of Blades Slots on Rotating Stall Phenomenon in Centrifugal

More information

A TEST RIG FOR TESTING HIGH PRESSURE CENTRIFUGAL COMPRESSORS MODEL STAGES AT HIGH REYNOLDS NUMBER

A TEST RIG FOR TESTING HIGH PRESSURE CENTRIFUGAL COMPRESSORS MODEL STAGES AT HIGH REYNOLDS NUMBER A TEST RIG FOR TESTING HIGH PRESSURE CENTRIFUGAL COMPRESSORS MODEL STAGES AT HIGH REYNOLDS NUMBER P. NAVA, M.PROFETI, M. GIACHI, F.SARRI GE-NUOVO PIGNONE G.P.MANFRIDA UNIVERSITY OF FLORENCE Italia Presented

More information

Flow Physics Analysis of Three-Bucket Helical Savonius Rotor at Twist Angle Using CFD

Flow Physics Analysis of Three-Bucket Helical Savonius Rotor at Twist Angle Using CFD Vol.3, Issue.2, March-April. 2013 pp-739-746 ISSN: 2249-6645 Flow Physics Analysis of Three-Bucket Helical Savonius Rotor at Twist Angle Using CFD Pinku Debnath, 1 Rajat Gupta 2 12 Mechanical Engineering,

More information

CFD: What is it good for?

CFD: What is it good for? CFD: What is it good for? Tom O Mahoney TNO Fluid Dynamics Introduction to CFD CFD - Computational Fluid Dynamics Computational the using of computers to simulate the physics of fluids Fluid Either gas

More information

Fully Coupled Automated Meshing with Adaptive Mesh Refinement Technology: CONVERGE CFD. New Trends in CFD II

Fully Coupled Automated Meshing with Adaptive Mesh Refinement Technology: CONVERGE CFD. New Trends in CFD II Flame Front for a Spark Ignited Engine Using Adaptive Mesh Refinement (AMR) to Resolve Turbulent Flame Thickness New Trends in CFD II Fully Coupled Automated Meshing with Adaptive Mesh Refinement Technology:

More information

PUTTING THE SPIN IN CFD

PUTTING THE SPIN IN CFD W H I T E PA P E R PUTTING THE SPIN IN CFD Overview Engineers who design equipment with rotating components need to analyze and understand the behavior of those components if they want to improve performance.

More information

ANSYS CFD results for the AIAA High Lift Prediction Workshop

ANSYS CFD results for the AIAA High Lift Prediction Workshop ANSYS CFD results for the AIAA High Lift Prediction Workshop Robin Steed ANSYS Canada Ltd. Waterloo, Ontario, Canada Greg Stuckert ANSYS, Inc. Lebanon, NH, USA 2009 ANSYS, Inc. All rights reserved. 1 Outline

More information

Introductory FLUENT Training

Introductory FLUENT Training Chapter 10 Transient Flow Modeling Introductory FLUENT Training www.ptecgroup.ir 10-1 Motivation Nearly all flows in nature are transient! Steady-state assumption is possible if we: Ignore transient fluctuations

More information

GEOMETRIC, THERMODYNAMIC AND CFD ANALYSES OF A REAL SCROLL EXPANDER FOR MICRO ORC APPLICATIONS

GEOMETRIC, THERMODYNAMIC AND CFD ANALYSES OF A REAL SCROLL EXPANDER FOR MICRO ORC APPLICATIONS 2 nd International Seminar on ORC Power Systems October 7 th & 8 th, 213 De Doelen, Rotterdam, NL GEOMETRIC, THERMODYNAMIC AND CFD ANALYSES OF A REAL SCROLL EXPANDER FOR MICRO ORC APPLICATIONS M. Morini,

More information

PASSIVE CONTROL OF SHOCK WAVE APPLIED TO HELICOPTER ROTOR HIGH-SPEED IMPULSIVE NOISE REDUCTION

PASSIVE CONTROL OF SHOCK WAVE APPLIED TO HELICOPTER ROTOR HIGH-SPEED IMPULSIVE NOISE REDUCTION TASK QUARTERLY 14 No 3, 297 305 PASSIVE CONTROL OF SHOCK WAVE APPLIED TO HELICOPTER ROTOR HIGH-SPEED IMPULSIVE NOISE REDUCTION PIOTR DOERFFER AND OSKAR SZULC Institute of Fluid-Flow Machinery, Polish Academy

More information

CAMRAD II COMPREHENSIVE ANALYTICAL MODEL OF ROTORCRAFT AERODYNAMICS AND DYNAMICS

CAMRAD II COMPREHENSIVE ANALYTICAL MODEL OF ROTORCRAFT AERODYNAMICS AND DYNAMICS CAMRAD II COMPREHENSIVE ANALYTICAL MODEL OF ROTORCRAFT AERODYNAMICS AND DYNAMICS 1 CAMRAD II IS AN AEROMECHANICAL ANALYSIS OF HELICOPTERS AND ROTORCRAFT INCORPORATING ADVANCED TECHNOLOGY multibody dynamics

More information

DAN-AERO MW: Detailed aerodynamic measurements on a full scale MW wind turbine

DAN-AERO MW: Detailed aerodynamic measurements on a full scale MW wind turbine DAN-AERO MW: Detailed aerodynamic measurements on a full scale MW wind turbine Christian Bak, Helge A. Madsen, Uwe Schmidt Paulsen, Mac Gaunaa Risø DTU National Laboratory for Sustainable Energy, DK-4000

More information

Dimensional analysis is a method for reducing the number and complexity of experimental variables that affect a given physical phenomena.

Dimensional analysis is a method for reducing the number and complexity of experimental variables that affect a given physical phenomena. Dimensional Analysis and Similarity Dimensional analysis is very useful for planning, presentation, and interpretation of experimental data. As discussed previously, most practical fluid mechanics problems

More information

O.F.Wind Wind Site Assessment Simulation in complex terrain based on OpenFOAM. Darmstadt, 27.06.2012

O.F.Wind Wind Site Assessment Simulation in complex terrain based on OpenFOAM. Darmstadt, 27.06.2012 O.F.Wind Wind Site Assessment Simulation in complex terrain based on OpenFOAM Darmstadt, 27.06.2012 Michael Ehlen IB Fischer CFD+engineering GmbH Lipowskystr. 12 81373 München Tel. 089/74118743 Fax 089/74118749

More information

Computational Modeling of Wind Turbines in OpenFOAM

Computational Modeling of Wind Turbines in OpenFOAM Computational Modeling of Wind Turbines in OpenFOAM Hamid Rahimi hamid.rahimi@uni-oldenburg.de ForWind - Center for Wind Energy Research Institute of Physics, University of Oldenburg, Germany Outline Computational

More information

Modeling Rotor Wakes with a Hybrid OVERFLOW-Vortex Method on a GPU Cluster

Modeling Rotor Wakes with a Hybrid OVERFLOW-Vortex Method on a GPU Cluster Modeling Rotor Wakes with a Hybrid OVERFLOW-Vortex Method on a GPU Cluster Mark J. Stock, Ph.D., Adrin Gharakhani, Sc.D. Applied Scientific Research, Santa Ana, CA Christopher P. Stone, Ph.D. Computational

More information

Aeronautical Testing Service, Inc. 18820 59th DR NE Arlington, WA 98223 USA. CFD and Wind Tunnel Testing: Complimentary Methods for Aircraft Design

Aeronautical Testing Service, Inc. 18820 59th DR NE Arlington, WA 98223 USA. CFD and Wind Tunnel Testing: Complimentary Methods for Aircraft Design Aeronautical Testing Service, Inc. 18820 59th DR NE Arlington, WA 98223 USA CFD and Wind Tunnel Testing: Complimentary Methods for Aircraft Design Background Introduction ATS Company Background New and

More information

Experimental Wind Turbine Aerodynamics Research @LANL

Experimental Wind Turbine Aerodynamics Research @LANL Experimental Wind Turbine Aerodynamics Research @LANL B. J. Balakumar, Los Alamos National Laboratory Acknowledgment: SuhasPol(Post-doc), John Hoffman, Mario Servin, Eduardo Granados (Summer students),

More information

Computational Simulation of Flow Over a High-Lift Trapezoidal Wing

Computational Simulation of Flow Over a High-Lift Trapezoidal Wing Computational Simulation of Flow Over a High-Lift Trapezoidal Wing Abhishek Khare a,1, Raashid Baig a, Rajesh Ranjan a, Stimit Shah a, S Pavithran a, Kishor Nikam a,1, Anutosh Moitra b a Computational

More information

Aerodynamic Design Optimization Discussion Group Case 4: Single- and multi-point optimization problems based on the CRM wing

Aerodynamic Design Optimization Discussion Group Case 4: Single- and multi-point optimization problems based on the CRM wing Aerodynamic Design Optimization Discussion Group Case 4: Single- and multi-point optimization problems based on the CRM wing Lana Osusky, Howard Buckley, and David W. Zingg University of Toronto Institute

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

Low-noise wind turbine design

Low-noise wind turbine design Low-noise wind turbine design Stefan Oerlemans, Peter Fuglsang Siemens Wind Power A/S email: stefan.oerlemans@siemens.com Outline Sound characteristics Noise sources Rotor design considerations Design

More information

CFD MODELLING OF TOP SUBMERGED LANCE GAS INJECTION

CFD MODELLING OF TOP SUBMERGED LANCE GAS INJECTION CFD MODELLING OF TOP SUBMERGED LANCE GAS INJECTION Nazmul Huda PhD Student Faculty of Engineering and Industrial Science Swinburne University of Technology Melbourne, Australia Supervised by Dr. Jamal

More information

Lecture 6 - Boundary Conditions. Applied Computational Fluid Dynamics

Lecture 6 - Boundary Conditions. Applied Computational Fluid Dynamics Lecture 6 - Boundary Conditions Applied Computational Fluid Dynamics Instructor: André Bakker http://www.bakker.org André Bakker (2002-2006) Fluent Inc. (2002) 1 Outline Overview. Inlet and outlet boundaries.

More information

FATIGUE LOADING IN WIND TURBINES

FATIGUE LOADING IN WIND TURBINES FATIGUE LOADING IN WIND TURBINES M. Ragheb 5/6/2009 INTRODUCTION Because o the complex systems o variable loads that wind turbines are subjected to, they are particularly susceptible to atigue damage.

More information

Unsteady Aerodynamic Analysis of a Bird-Damaged Turbofan

Unsteady Aerodynamic Analysis of a Bird-Damaged Turbofan Structures, Structural Dynamics, and Materials and Co-located Conferences April 8-11, 2013, Boston, Massachusetts 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference AIAA

More information

COMPARISON OF COUNTER ROTATING AND TRADITIONAL AXIAL AIRCRAFT LOW-PRESSURE TURBINES INTEGRAL AND DETAILED PERFORMANCES

COMPARISON OF COUNTER ROTATING AND TRADITIONAL AXIAL AIRCRAFT LOW-PRESSURE TURBINES INTEGRAL AND DETAILED PERFORMANCES COMPARISON OF COUNTER ROTATING AND TRADITIONAL AXIAL AIRCRAFT LOW-PRESSURE TURBINES INTEGRAL AND DETAILED PERFORMANCES Leonid Moroz, Petr Pagur, Yuri Govorushchenko, Kirill Grebennik SoftInWay Inc. 35

More information

Perspective on R&D Needs for Gas Turbine Power Generation

Perspective on R&D Needs for Gas Turbine Power Generation Perspective on R&D Needs for Gas Turbine Power Generation Eli Razinsky Solar Turbine Incorporated 2010 UTSR Workshop October 26, 2011 1 Research Requirements Overview Specific Requirements 2 Society Requirements

More information

Drag Analysis for an Economic Helicopter. S. Schneider, S. Mores, M. Edelmann, A. D'Alascio and D. Schimke

Drag Analysis for an Economic Helicopter. S. Schneider, S. Mores, M. Edelmann, A. D'Alascio and D. Schimke Drag Analysis for an Economic Helicopter S. Schneider, S. Mores, M. Edelmann, A. D'Alascio and D. Schimke Content Numerical Simulation vs. Measurement Wind Tunnel Setup Numerical Simulation Setup Discussion

More information

Performance prediction of a centrifugal pump working in direct and reverse mode using Computational Fluid Dynamics

Performance prediction of a centrifugal pump working in direct and reverse mode using Computational Fluid Dynamics European Association for the Development of Renewable Energies, Environment and Power Quality (EA4EPQ) International Conference on Renewable Energies and Power Quality (ICREPQ 10) Granada (Spain), 23rd

More information

The ADREA-HF CFD code An overview

The ADREA-HF CFD code An overview The ADREA-HF CFD code An overview Dr. A.G. Venetsanos Environmental Research Laboratory (EREL) National Centre for Scientific Research Demokritos, Greece venets@ipta.demokritos.gr Slide 2 Computational

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

CFD Analysis of a Centrifugal Pump with Supercritical Carbon Dioxide as a Working Fluid

CFD Analysis of a Centrifugal Pump with Supercritical Carbon Dioxide as a Working Fluid KNS 2013 Spring CFD Analysis of a Centrifugal Pump with Supercritical Carbon Dioxide as a Working Fluid Seong Gu Kim Jeong Ik Lee Yoonhan Ahn Jekyoung Lee Jae Eun Cha Yacine Addad Dept. Nuclear & Quantum

More information

Lift and Drag on an Airfoil ME 123: Mechanical Engineering Laboratory II: Fluids

Lift and Drag on an Airfoil ME 123: Mechanical Engineering Laboratory II: Fluids Lift and Drag on an Airfoil ME 123: Mechanical Engineering Laboratory II: Fluids Dr. J. M. Meyers Dr. D. G. Fletcher Dr. Y. Dubief 1. Introduction In this lab the characteristics of airfoil lift, drag,

More information

RESEARCH PROJECTS. For more information about our research projects please contact us at: info@naisengineering.com

RESEARCH PROJECTS. For more information about our research projects please contact us at: info@naisengineering.com RESEARCH PROJECTS For more information about our research projects please contact us at: info@naisengineering.com Or visit our web site at: www.naisengineering.com 2 Setup of 1D Model for the Simulation

More information

GT2011 46090 ANALYSIS OF A MICROGASTURBINE FED BY NATURAL GAS AND SYNTHESIS GAS: MGT TEST BENCH AND COMBUSTOR CFD ANALYSIS

GT2011 46090 ANALYSIS OF A MICROGASTURBINE FED BY NATURAL GAS AND SYNTHESIS GAS: MGT TEST BENCH AND COMBUSTOR CFD ANALYSIS ASME Turbo Expo 2011 June 6 10, 2011 Vancouver, Canada GT 2011 46090 ANALYSIS OF A MICROGASTURBINE FED BY NATURAL GAS AND SYNTHESIS GAS: MGT TEST BENCH AND COMBUSTOR CFD ANALYSIS M. Cadorin 1,M. Pinelli

More information

Numerical simulation of maneuvering combat aircraft

Numerical simulation of maneuvering combat aircraft Numerical simulation of maneuvering combat aircraft Andreas Schütte DLR - German Aerospace Center Institute of Aerodynamics and Flow Technology Oct. 14 th 2005, Stuttgart Folie 1 > HLRS 2005 > A. Schütte

More information

Laminar Flow in a Baffled Stirred Mixer

Laminar Flow in a Baffled Stirred Mixer Laminar Flow in a Baffled Stirred Mixer Introduction This exercise exemplifies the use of the rotating machinery feature in the CFD Module. The Rotating Machinery interface allows you to model moving rotating

More information

COMPARISON OF SOLUTION ALGORITHM FOR FLOW AROUND A SQUARE CYLINDER

COMPARISON OF SOLUTION ALGORITHM FOR FLOW AROUND A SQUARE CYLINDER Ninth International Conference on CFD in the Minerals and Process Industries CSIRO, Melbourne, Australia - December COMPARISON OF SOLUTION ALGORITHM FOR FLOW AROUND A SQUARE CYLINDER Y. Saito *, T. Soma,

More information

Comparative Analysis of Gas Turbine Blades with and without Turbulators

Comparative Analysis of Gas Turbine Blades with and without Turbulators Comparative Analysis of Gas Turbine Blades with and without Turbulators Sagar H T 1, Kishan Naik 2 1 PG Student, Dept. of Studies in Mechanical Engineering, University BDT College of Engineering, Davangere,

More information

Customer Training Material. Lecture 2. Introduction to. Methodology ANSYS FLUENT. ANSYS, Inc. Proprietary 2010 ANSYS, Inc. All rights reserved.

Customer Training Material. Lecture 2. Introduction to. Methodology ANSYS FLUENT. ANSYS, Inc. Proprietary 2010 ANSYS, Inc. All rights reserved. Lecture 2 Introduction to CFD Methodology Introduction to ANSYS FLUENT L2-1 What is CFD? Computational Fluid Dynamics (CFD) is the science of predicting fluid flow, heat and mass transfer, chemical reactions,

More information

Efficient Convergence Acceleration for a Parallel CFD Code

Efficient Convergence Acceleration for a Parallel CFD Code Efficient Convergence Acceleration for a Parallel CFD Code R.D. Williams a, J. Häuser b, and R. Winkelmann b a California Institute of Technology, Pasadena, California b Center of Logistics and Expert

More information

Current Status and Challenges in CFD at the DLR Institute of Aerodynamics and Flow Technology

Current Status and Challenges in CFD at the DLR Institute of Aerodynamics and Flow Technology Current Status and Challenges in CFD at the DLR Institute of Aerodynamics and Flow Technology N. Kroll, C.-C. Rossow DLR, Institute of Aerodynamics and Flow Technology DLR Institute of Aerodynamics and

More information

CFturbo Modern turbomachinery design software

CFturbo Modern turbomachinery design software COMPRESSOR Tech Magazine CFturbo Modern turbomachinery design software Designing new compressors from scratch and compressor redesign By Ralph-Peter Mueller & Gero Kreuzfeld Ralph-Peter Mueller and Gero

More information