Introduction to ANSYS Academic Research

Transcription

1 Introduction to ANSYS Academic Research bwgrid meeting University of Heidelberg Steinbuch Centre for Computing (SCC) Dr. Scientific Computing Services (SCS) Zirkel 2, Bldg Karlsruhe, Germany phone: KIT Universität des Landes Baden-Württemberg und nationales Forschungszentrum in der Helmholtz-Gemeinschaft

2 Topics I part: Where you can use the software? How to get access? How to get started with ANSYS products? How many licenses are available? How to get help/documentation? II part: Overview of the products available in the ANSYS Workbench ANSYS Fluent Web portal interface Demonstration Questions and Answers

3 Where you can use the software? site login node Mannheim/Heidelberg gtbw.grid.uni-mannheim.de Esslingen Karlsruhe sccbwgrid1.fzk.de Stuttgart gridway.dgrid.hlrs.de Esslingen grid01.hs-esslingen.de Tübingen gt4.uni-tuebingen.de Freiburg globus.bfg.uni-freiburg.de Ulm/Konstanz koios.rz.uni-ulm.de

4 Homepage of the bwgrid project

5 How to get access to the bwgrid cluster? 1. DFN Grid-Zertifikat allocated by the computing centre of the respective university 2. Membership in the virtual organization (VO) bwgrid /vo/bwgrid/vomrs 3. A middleware Client the Globus Toolkit can be used as Grid middleware GSI-SSHTerm can be used as an easy way for connecting to the Grid

6 Access via GSI-SSH Term Login node Port your DFN user certificate pfx and p12 files (.p12,.pfx)

7 How to get started with ANSYS products? The installed software is available via the module environment: > module load cae/ansys/13.0 Launching ANSYS products: > runwb2 ANSYS Workbench > fluent ANSYS FLUENT > cfx5 ANSYS CFX > ansys130 g Mechanical APDL > anshelp130 ANSYS 13.0 Help

8 ANSYS Workbench Common data usage both systems use the same geometry Toolbox Analysis Systems Component Systems Custom Systems Design Exploration Fluid problem with FLUENT Coupling of two systems cells Static structural analysis with ANSYS Mechanical Data transfer the solution of the CFD part is the initial condition of the setup cell of the mechanical part

9 The cells Engineering Data Library with predefined material properties. Geometry Starts the Design Modeler. Model Mesh Setup(ANSYS) Starts the Mechanical program. Further geometry properties can be specified, e.g. coordinate systems and the structure will be meshed. Starts the Mesh program for CFD solver. Mesh properties can be specified, the mesh strategy identified, and the solution space will be meshed. Continuous the Mechanical program by specification of further model properties (e.g. material properties, boundary conditions and loads, etc.) and solver parameters. Setup (FLUENT) Starts the GUI of Fluent for further model description. Setup (CFX) Starts the CFX-Pre for further model description Solution Results Starts the appropriate solver manager. Opens the post processor of the appropriate program. For ANSYS the post processor of Mechanical is started, for Fluent and CFX the CFD-Post will be started.

10 Example: the Geometry cell imports an.agdb file or files in other CAD formats duplicates the analysis system links to other analysis systems or component systems makes an update of the cell reads the information of the cells before it deletes all information from the cell changes the name of the analysis system or component system defines cell properties opens context help

11 The Workbench files ANSYS Workbench project database file.wbpj Engineering Data.eddb DesignModeler.agdb ANSYS Mechanical.mechdb ANSYS APDL.db ANSYS FLUENT.cas,.dat,.msh ANSYS CFX.cfx,.def,.res,.mdef,.mres CFX-Mesh.cmdb

12 ANSYS Fluent FLUENT is a finite volume program for the calculation of flow problems. The problems which can be treated are described as follows: isotherm and non-isotherm compressible and non-compressible flows laminar and turbulence flows stationary and unsteady flows Newtonian and non-newtonian flows multiphase fluid dynamics (flow-flow, flow-solid) heat conduction and convection active grid free surface chemical reactions combustion process

13 ANSYS Fluent GUI Standard Toolbar Graphics Toolbar Menu Bar Graphics Window Navigation Pane Task Page Console

14 ANSYS CFX A short overview over the functionalities of the program: Steady-state and transient flows Laminar and turbulent flows Subsonic, transonic and supersonic flows Heat transfer and thermal radiation Buoyancy Non-Newtonian flows Transport of non-reacting scalar components Multiphase flows Combustion Flows in multiple frames of reference Particle tracking

15 ANSYS CFX GUI Menu Bar Tool Bar Working Directory Selector Output Window

16 ANSYS Mechanical APDL

17 Licensing How many licenses are available? The provided license allows a concurrently usage of 25 ANSYS products and 69 parallel processes. (License Feature Names: aa_r, aa_mcad, aa_r_hpc) What are the license conditions? Usage of ANSYS products only for non-commercial purposes allowed Terms of use can be found under: How is the license management done? FLEXlm license manager Using a floating license model

18 How to get help/documentation? Online documentation from the GUI: help button from the command line: > anshelp

19 Documentation General Documentation Release Notes, Installation and Licensing Guides Legal Notices Workbench Documentation, e.g. User s Guide Scripting Guide Structural Mechanics Documentation, e.g. Mechanical Application Mechanical APDL Meshing Documentation, e.g. Meshing Application Fluid Dynamics Documentation, e.g. CFD-Post Users s Guide, Tutorial ANSYS CFX Documentation ANSYS FLUENT Documentation

20 Topics I part: Where you can use the software? How to get access? How to get started with ANSYS products? How many licenses are available? How to get help/documentation/further reading? II part: Overview of ANSYS Academic Research product portfolio ANSYS Fluent Web portal interface Demonstration Questions and Answers

21 ANSYS Academic Research Product Portfolio Solver capability ANSYS DesignSpace capability ANSYS Mechanical capability ANSYS Mechanical Emag capability ANSYS Mechanical CFD Flo capability (Fluid Structural) HPC ANSYS Multiphysics capability ANSYS CFX Full Capability Solver ANSYS MFS Solver (Single code coupling) ANSYS MFX Solver (Fluid Structural Interaction) ANSYS User Prog. Features FLUENT FLUENT Nox FLUENT Fiber Module FLUENT MHD Module FLUENT Population Balance Module ANSYS AUTODYN (2D & 3D) ANSYS Explicit STR (AUTODYN Lagrange) Built in 4 parallel processors/cores HPC > 4 processors available (at extra cost) VT for Solvers (VT Accelerator & Frequency Sweep VT)

22 ANSYS Academic Research Product Portfolio Pre & Post Processing Features & Workbench Applications CFX-Pre CFD-Post AUTODYN PrepPost FLUENT Preprocessing ICEM CFD Meshing ICEM output interfaces for ANSYS, CFX, FLUENT ANSYS PrepPost MCAD Geometry Interfaces Workbench Schematic (Project Page) DesignModeler Resources (EDA) ANSYS Meshing Application (WB) ANSYS Meshing Application (WB) CFX-Mesh Mechanical PrepPost (Simulation) Parameters (DX, including DXVT & VT at the element level) Fatigue Module FEModeler FEModeler Mesh Morpher Rigid Dynamics Remote Solver Manager

23 Workflow of a FLUENT project Geometrical data in different CAD-formats Mesh in different solver-formats Pre-processing Mesh model within the workbench ANSYS ICEM_CFD HyperMesh.msh.msh.cas Solver FLUENT.cas.dat Post-processing CFD Post ANSYS ICEM_CFD HyperMesh

24 Tutorial: Fluent in ANSYS Workbench Topics covered: create, solve and post-process of a simple Fluent analysis on ANSYS Workbench The Geometry cell is now up to date the geometry probe.agdb has been imported

25 Design Modeler The Design Modeler application starts with the loaded geometry

26 Design Modeler View the summary of all the named faces. To generate and view the mesh

27 Design Modeler The Mesh and FLUENT input files have been generated and the Mesh cell is up-to-date

28 Fluent opens with the mesh loaded The model has to be specified in more detail Boundary conditions need to be specified The solution must be initialized before Fluent can begin calculating Select run calculation

29 Fluent Run calculation

30 CFD-Post Loads the result in CFD-Post Click insert and select contour

31 CFD-Post A contour plot of static pressure has been generated on the symmetry boundary. Specify the geometry parameters accordingly

32 View Files Click View and select Files You can review the project files by displaying all the files associated with the project

33 Fluent in Batch Mode Example of an.inp file ;read a case file /file/read-case example.cas ;initialize the flow field with the ;current default values /solve/initialize/initialize-flow ;perform 100 iterations /solve/iterate 100 ;write a case and a data file /file/write-case-data example100.dat read case files modification of modeling data (optional) calculation write case/data files termination ;exit program exit yes

34 How to get a Journal File In order to record a journal file from a session in the command mode you can proceed as follows: 1. Start FLUENT in interactive mode 2. Activate writing a journal file (select File > Write > Start Journal) 3. All further entries have to be in text mode using the keyboard Perform the steps outlined in the diagram on the previous slide (a simulation with only one iterations is useful for testing) 4. Close the journal file in the menu (select File > Write > Stop Journal) 5. Close FLUENT

35 fluent-seriell.sh #!/bin/bash #-N #PBS N fluent #request 1 node and 1 cores per node #PBS l nodes=1:ppn=1 #no mails #PBS m n #10 minutes runtime #PBS l walltime=00:10:00 #load the relevant module module load cae/ansys/13.0 #run fluent in serial on 1 node time fluent 3d g i example.inp << EOF exit EOF

36 fluent-parallel-one.sh #!/bin/bash #run simple fluent job in parallel on 1 node #-N #PBS N fluentoneparallel #request 1 node and 2 cores per node #PBS l nodes=1:ppn=2 #no mails #PBS m n #10 minutes runtime #PBS l walltime=00:10:00 #load the relevant module module load cae/ansys/13.0 #run fluent in parallel on 1 node time fluent 3d g t2 i example.inp << EOF exit EOF

37 fluent-parallel.sh #!/bin/bash #run simple multi-node fluent job #-N #PBS N fluentparallel #request 2 nodes and 8 cores per node #PBS l nodes=2:ppn=8 #no mails #PBS m n #10 minutes runtime #PBS l walltime=00:10:00 #edit PBS_NODEFILE NP=$(wc l $PBS_NODEFILE awk {print $1} ) echo nodes $NP cat $PBS_NODEFILE #load the relevant module module load cae/ansys/13.0 #run fluent in parallel across nodes in $PBS_NODEFILE time fluent 3d g pib t16 ssh cnf=$pbs_nodefile i example.inp << EOF exit EOF

38 Job Submit via Command Line 1. Login to the bwgrid cluster 2. Upload the following example files and scripts in your home directory example.cas.gz example.inp fluent-seriell.sh fluent-parallel-one.sh fluent-parallel.sh 3. Type in the following command: qsub <script-name>.sh

39 Useful Commands at the Command Line Help for program module module help Shows all available software modules module avail Load a specific module module load <module name> e.g. module load cae/ansys/13.0 Unload a specific module module unload <module name> e.g. module unload cae/ansys/13.0 Shows all loaded modules module list

40 Useful Commands at the Command Line Job submission qsub script.sh Job deletion qdel <jobid> e.g. qdel Shows a list of all jobs qstat Information about jobs in the queue showq (active: running jobs, blocked: paused jobs, eligible: waiting jobs) Expected job start showstart <jobid> e.g. showstart Job submission with walltime of 12 hours qsub l walltime=12:00:00 script.sh

41 Advantages using a Grid Portal Simplifies access to resources with a Web interface no complicate handling of the command line supports location-independent work Web browser Uniform access to shared resources single sign-on centralized management of credentials safe access to resources uniformly look & feel

42 bwgrid Portal Architecture Portal server Tomcat servlet container Grid Client Gridsphere portlet container gatlet Job Submit Portlet gatlet MyProxy Portlet usermg User Manager Portlet gridsphere Login shared libs **Gatlet *GAT-API Xalan Grid Middleware Server Globus Cluster Engineering Portlet Postgres database gatlet gspheredat *GAT generic and flexible API for Grid service connections **Gatlet portlet interface for GAT (Grid Application Toolkit)

43 bwgrid Science Portal Certificate based access multilingualism applications portlet

44 About

45 Introduction

46 Step-by-Step

47 Tools

48 Documentation

49 Galery

50 Licensing

51 Job Specification

52 Queue Selection

53 Job Monitoring

54 Job Details

55 ANSYS CFD Applications turbine, pump compressor blower, ventilator automotive engineering plant engineering railed vehicles aircraft construction power plant technology combustion chamber heat exchanger cooling system building circulation indoor flow safety engineering fire spread offshore industry chemical industry process engineering hydraulic, pneumatic medical engineering and so forth!

56 For more information Links: Homepage of ANSYS Product portfolio Terms of use Fluent Homepage of the portal project bwgrid virtual organization Test portal server in Ulm Portal server in Ulm

57 For more information Books: Christof Gebhardt Praxisbuch FEM mit ANSYS Workbench Einführung in die lineare und nichtlineare Mechanik Hanser Verlag, 2011 Wilhelm Rust Nichtlineare Finite-Elemente-Berechnungen Vieweg + Teubner, 2011 Events: ANSYS events overview

58 Thank you for your attention!