mirror of
https://github.com/ParticulateFlow/CFDEMcoupling-PFM.git
synced 2025-12-08 06:37:44 +00:00
9fd4f62f21
This 2D case of vortex shedding in laminar cross-flow demonstrates the concept of recurrence. This is a bit work-in-progress: please check whether this tutorial runs with the recurrence model and tools of CFDEMcoupling, namely rStatAnalysis. The simulation roughly goes through three stages: * The initial solution computed by potentialFoam * A period of symmetric, steady-state flow * Finally, periodic vortex shedding These three stages are clearly visible in the recurrence plot. * We see how not one of the later velocity fields is similar to the initial one * We see the intermediate stage with a symmetric flow field * We see the periodic vortex shedding
91 lines
2.0 KiB
C++
91 lines
2.0 KiB
C++
/*--------------------------------*- C++ -*----------------------------------*\
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| ========= | |
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| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
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| \\ / O peration | Version: 2.1.x |
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| \\ / A nd | Web: www.OpenFOAM.org |
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| \\/ M anipulation | |
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\*---------------------------------------------------------------------------*/
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FoamFile
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{
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version 2.0;
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format ascii;
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class dictionary;
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location "system";
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object controlDict;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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application twoPhaseEulerFoam;
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startFrom latestTime;
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startTime 0.1;
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stopAt endTime;
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//stopAt writeNow;
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endTime 2000;
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deltaT 1.0e-2;
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writeControl adjustableRunTime;
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writeInterval 10;
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purgeWrite 0;
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writeFormat binary;
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writePrecision 6;
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writeCompression uncompressed;
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timeFormat general;
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timePrecision 6;
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runTimeModifiable yes;
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adjustTimeStep yes;
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maxCo 0.25;
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maxDeltaT 1;
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functions
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{
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forces
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{
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type forceCoeffs;
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functionObjectLibs ( "libforces.so" );
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writeControl timeStep;
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writeInterval 1;
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patches
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(
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cylinder
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);
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directForceDensity no;
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pName p;
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UName U;
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rhoName rhoInf;
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//log true;
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rhoInf 994.5;
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rho rhoInf;
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CofR ( 0 0 0 );
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liftDir ( 0 1 0 );
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dragDir ( 1 0 0 );
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pitchAxis ( 0 0 1 );
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magUInf 10.0;
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lRef 0.04;
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Aref 0.0157;
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Aref1 0.004;
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rhoRef 994.5;
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}
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}
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// ************************************************************************* //
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