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bouyantBoussinesqPimpleFoam not working properly |
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December 18, 2012, 09:07 |
bouyantBoussinesqPimpleFoam not working properly
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#1 |
New Member
Joaquim Monteiro
Join Date: Dec 2012
Posts: 12
Rep Power: 13 |
Hello
I am making a simulated flow over a heat transfer cylinder. I am using bouyantBoussinesqPimpleFoam but is not working properly. After a certain time the number of Courant becomes very high and the simulation does not converge. I've used the same geometry without heat transfer with pisoFoam and everything went well. What am I doing wrong. thank's |
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December 18, 2012, 09:44 |
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#2 | |
Senior Member
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Quote:
Welcome to Forum. It may be caused by a lot of things, e.g. - does it happen at the beging of your simulation? If yes your initial timestep might be too big... - what Courant number do you set in controlDict? - boundary conditions... look at your log and see when the Courant number starts to rise. if you share your log, perhaps we can help you better. |
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December 19, 2012, 04:21 |
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#3 |
New Member
Joaquim Monteiro
Join Date: Dec 2012
Posts: 12
Rep Power: 13 |
Thanks for the reply
I am using the same geometry for pisoFoam and the bouyantBoussinesqPimpleFoam. All the surfaces placed at the same temperature, to see if the problem was to those files. Initially the number of Courant's stable and then suddenly at 2 second begins to skyrocket and the problem not converge. thank you |
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