|March 16, 2014, 15:20||
Flow around a sphere using chtMultiRegionFoam
Join Date: Mar 2014
Posts: 1Rep Power: 0
I am new to openFoam. Hope someone can help me .
I am trying to simulate an isothermal, laminar flow around a sphere with chtMultiRegionFoam (after I'll try to model heat generation inside the sphere). My mesh domain is 6m x 6m x 6m with a 1.2m D sphere at the centre. I have imposed no-slip condition on the sphere, fixed velocity at the inlet, inletOutlet condition at the outlet and slip conditions at the other 4 boundaries. As for the pressure I used fixedValue at the outlet and zeroGradient at the inlet.
The problem I have is that it seems that instabilities are generated at one corner of the boundary so that I have backup flow at the outlet. These instabilities get worse with decreasing the velocity so I suspect has something to do with the solver settings
I attached the file I used in the simulation and the picture of a section of my system (Water is flowing left to right at 0.1 m/s)
Any help is greatly appreciated! Thank you!
|chtmultiregionfoam, flow around a sphere|
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