[Other] A patch with two types

celestial · November 14, 2019, 12:33

I am referring to the boundary file residing inside folder constant/polyMesh.

Perhaps these are stupid questions.

1) Can a type be both wall and cyclic ? I am thinking of the periodic set-up of blades in a compressor.

2) I have a patch of type wall since I will solve Navier Stokes equations near the interface between air and a solid. However, this interface also separates two different meshes and the same patch also needs to be of type mappedPatch because I use swak4Foam's groovyBC for an electric field boundary condition. Unfortunately, OF complains that the patch cannot be of both types.What can be done ?

Have a great day,
Marc

celestial · November 18, 2019, 22:47

OK, fine. If nobody knows, I'll stick with openFoam's

patchToPatchInterpolation.faceInterpolate(othersid epatch.patchInternalField());

use the above for your patch

and in a file

variableValueYourFieldVarFvPatchScalarField.C

the following excerpt:

void variableValueYourFieldVarFvPatchScalarField::updat eCoeffs()
{
if (updated())
{
return;
}

operator==(*this);

fixedValueFvPatchScalarField::updateCoeffs();
}

which will be called if in dictionary 0/YourFieldVar, your patch has type

variableValueYourFieldVar

This way, I can keep type wall for the your patch in the boundary file.

November 14, 2019, 12:33	A patch with two types	#1
celestial Member Join Date: Mar 2019 Posts: 86 Rep Power: 7	I am referring to the boundary file residing inside folder constant/polyMesh. Perhaps these are stupid questions. 1) Can a type be both wall and cyclic ? I am thinking of the periodic set-up of blades in a compressor. 2) I have a patch of type wall since I will solve Navier Stokes equations near the interface between air and a solid. However, this interface also separates two different meshes and the same patch also needs to be of type mappedPatch because I use swak4Foam's groovyBC for an electric field boundary condition. Unfortunately, OF complains that the patch cannot be of both types.What can be done ? Have a great day, Marc

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November 18, 2019, 22:47		#2
celestial Member Join Date: Mar 2019 Posts: 86 Rep Power: 7	OK, fine. If nobody knows, I'll stick with openFoam's patchToPatchInterpolation.faceInterpolate(othersid epatch.patchInternalField()); use the above for your patch and in a file variableValueYourFieldVarFvPatchScalarField.C the following excerpt: void variableValueYourFieldVarFvPatchScalarField::updat eCoeffs() { if (updated()) { return; } operator==(*this); fixedValueFvPatchScalarField::updateCoeffs(); } which will be called if in dictionary 0/YourFieldVar, your patch has type variableValueYourFieldVar This way, I can keep type wall for the your patch in the boundary file.