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
52 lines
1.4 KiB
C++
52 lines
1.4 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: 4.0 |
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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 binary;
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class volVectorField;
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location "0";
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object U;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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dimensions [0 1 -1 0 0 0 0];
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internalField uniform (0 0 0);
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boundaryField
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{
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cylinder
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{
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type fixedValue;
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value uniform (0 0 0);
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}
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inlet
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{
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type fixedValue;
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value uniform (0.0040120 0 0); // Re = 200
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}
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outlet
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{
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type inletOutlet;
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inletValue uniform (0 0 0);
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value uniform (0 0 0);
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}
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"side.*"
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{
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type slip;
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}
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frontBack
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{
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type empty;
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}
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}
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// ************************************************************************* //
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