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Oscillating a porousBafflePressure (cyclic) boundary

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Old   April 10, 2018, 06:45
Default Oscillating a porousBafflePressure (cyclic) boundary
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Mohamad
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Hello,

I'm trying to simulate an oscillating actuator disk model (attached is my computational domain). Previously, I have done some simulations on actuator disk using the porousBafflePressure boundary condition to create the pressure jump condition on the disk. Now I'm trying to oscillate this disk but I haven't manage to accomplish this since the boundary type cyclic (used for porousBafflePressure boundary condition in 0/p file) cannot be oscillated using the solver displacementLaplacian (in constant/dynamicMeshDict).

My setup are as follows:

0/p:

boundaryField
{
DISK_half0
{
type porousBafflePressure;
patchType cyclic;
jump uniform 0;
value uniform 0;
D 0;
I 4;
length 1;
}
DISK_half1
{
type porousBafflePressure;
patchType cyclic;
value uniform 0;
D 0;
I 4;
length 1;
jump uniform 0;
}
}



constant/dynamicMeshDict

dynamicFvMesh dynamicMotionSolverFvMesh;

motionSolverLibs ( "libfvMotionSolvers.so" );

solver displacementLaplacian;


displacementLaplacianCoeffs
{
diffusivity inverseDistance (DISK_half0 DISK_half1);
}



So far I've tried using different types of boundaries but only boundary type wall and patch seems to be able to oscillate when using displacementLaplacian. Is there any other way to do this? Any help would be much appreciated.

Thank you.

Mohamad
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