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Solution diverges at high Reynolds numbers and fine grid in COMSOL |
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September 1, 2019, 18:00
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Solution diverges at high Reynolds numbers and fine grid in COMSOL
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Senior Member
Join Date: Jan 2018
Posts: 121
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Hi, I'm using COMSOL to simulate heat transfer of a flow over a series of cylinders.
When I use Reynolds numbers bigger than 100, the solution only converges with normal mesh and it diverges with finer meshes! It diverges with following grid at Re=200 and converges with Re=100!  And It will be converged with this grid:  And it makes me unable to check mesh dependency. Is there any reason? |
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