[Other] dynamicRefineFvMesh does not unrefine the mesh

maksjood · September 20, 2019, 05:51

Hi. I'm new to adaptive mesh refinement (AMR) and using OpenFOAM-3.0 in windows. Everything works fine except that the mesh does not get unrefined when the refinement situation is lifted. My dynamicMeshDict is as follows

dynamicRefineFvMeshCoeffs
{
refineInterval 1;
field Cf;//concentration of a reactive species
lowerRefineLevel 10;
upperRefineLevel 100;// Cf varies between 0 and 165
unrefineLevel 2;
nBufferLayers 0;
maxRefinement 1;
maxCells 40000;
correctFluxes
(
(phi none)
);
dumpLevel true;
}

after a while in simulation, Cf reaches 165 (nearly homogeneous in the whole domain), but the mesh does not get unrefined

maksjood · September 22, 2019, 06:07

Found out that unrefinement happens when the value is lower than unrefine level not higher

September 20, 2019, 05:51	dynamicRefineFvMesh does not unrefine the mesh	#1
maksjood New Member javad haqqani Join Date: Dec 2017 Posts: 16 Rep Power: 8	Hi. I'm new to adaptive mesh refinement (AMR) and using OpenFOAM-3.0 in windows. Everything works fine except that the mesh does not get unrefined when the refinement situation is lifted. My dynamicMeshDict is as follows dynamicRefineFvMeshCoeffs { refineInterval 1; field Cf;//concentration of a reactive species lowerRefineLevel 10; upperRefineLevel 100;// Cf varies between 0 and 165 unrefineLevel 2; nBufferLayers 0; maxRefinement 1; maxCells 40000; correctFluxes ( (phi none) ); dumpLevel true; } after a while in simulation, Cf reaches 165 (nearly homogeneous in the whole domain), but the mesh does not get unrefined

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September 22, 2019, 06:07		#2
maksjood New Member javad haqqani Join Date: Dec 2017 Posts: 16 Rep Power: 8	Found out that unrefinement happens when the value is lower than unrefine level not higher