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October 25, 2018, 04:29 |
positive bounding k
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#1 |
Senior Member
CFD_Lovers
Join Date: Mar 2015
Posts: 168
Rep Power: 11 |
Hi FOAMers!
I'm facing with something weird during case running using k-epsilon The problem: When i pause the running in every arbitrary time (with saving of course) and i start to run the case from last saved time step, i get bounding error for k . This is not happen when the case is running non stopping. Only after make the case stop and start again! So how could it be explained? Regards |
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October 27, 2018, 21:04 |
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#2 | |
Member
Anonymous
Join Date: Aug 2016
Posts: 75
Rep Power: 10 |
Quote:
Check your mesh. Usually non-orthogonality or the cells with very small determinant (too planar cells (drastic aspect ratio)) gives rise to these issues. Try running: Code:
checkMesh -allGeometry -allTopology If there is nothing wrong with the mesh, then you need to use bounded/limited div and grad schemes. Thanks, |
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October 28, 2018, 02:48 |
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#3 | |
Senior Member
CFD_Lovers
Join Date: Mar 2015
Posts: 168
Rep Power: 11 |
Quote:
Thank you very much, I Got the idea. your hints waas helpful. |
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