Sig Turbomachinery / Single Channel Pump

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Contents

1 Testcase description

Mikko Auvinen, Aalto University, Helsinki, Finland

Håkan Nilsson, Chalmers University of Technology, Gothenburg, Sweden

Movie showing unsteady results: Media:magU-w1-CoarseSST.gif

2 Published computational results

Auvinen et al. [1] has done a detailed analysis of this case, which forms the base of the case-study. Some of those results can be reproduced with these files.

3 References

[1] Auvinen, M., Ala-Juusela, J., Pedersen, N., Siikonen, T. "Time-Accurate Turbomachinery Simulations with Open-Source CFD; Flow Analysis of a Single-Channel Pump with OpenFOAM", V European Conference on Computational Fluid Dynamics, ECCOMAS CFD 2010, Lisbon, Portugal, June, 2010

Media:FullPaper.tar.gz

4 How to get the files

Get all the current case files by doing:

 
 cd $FOAM_RUN
 svn checkout svn://svn.code.sf.net/p/openfoam-extend/svn/trunk/Breeder_1.5/OSIG/TurboMachinery/singleChannelPump

In the descriptions below, we thus assume that the singleChannelPump directory is located in the $FOAM_RUN directory

Update your files every now and then by doing:

 
 cd $FOAM_RUN/singleChannelPump
 svn update

See further info at OpenFOAM-extend webpage

You will also need the transientSimpleDyMFoam:

 
 cd $FOAM_RUN
 svn checkout svn://svn.code.sf.net/p/openfoam-extend/svn/trunk/Breeder_1.5/OSIG/TurboMachinery/applications/solvers/incompressible/transientSimpleDyMFoam
cd transientSimpleDyMFoam
wmake

The turboPerformance functionObject is used to determine the shaft power, hydrodynamic head and efficiency. To install and use it, see Sig Turbomachinery Library turboPerformance

5 Directory structure

The case directory ($FOAM_RUN/singleChannelPump/Pump) contains the following files, scripts and directories:

 
README
setBatch
system/
constant/
Allclear
Allrun.MRFSimpleFOAM
Allrun.transientSimpleDyMFoam
Orig.0/
transientSimpleDyMFoam.0/
transientSimpleDyMFoam.1/

Remember to look at the README file. It also contains information on how to run the cases.

6 Test cases

6.1 Descriptions of the scripts used in the cases

 Allrun.MRFSimpleFoam: Perform steady-state MRFSimpleFoam analysis.
 Allrun.transientSimpleDyMFoam: Perform time-accurate transientSimpleDyMFoam analysis.
 Allclear: Remove time directories and return to the initial state.

6.2 Check list in case of errors during the simulations