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problem - RSM and laminar flamelet

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Old   May 14, 2004, 04:16
Default problem - RSM and laminar flamelet
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George
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Hi, is here anybody who did a simulation of diffusion flames using laminar flamelet model together with RSM for turbulence? I'm having quite a hard time trying to avoid divergence early from the switchover to RSM from any other turbulence models.

Thanks George
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Old   May 17, 2004, 11:01
Default Re: problem - RSM and laminar flamelet
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zxaar
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i think i have done it long ago, i don't rem much but i din't get the divergence

::zx__
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Old   May 18, 2004, 03:33
Default Re: problem - RSM and laminar flamelet
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George
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Thanks for your input, I will definitely give it another try, perhaps in a simpler geometry to have a better chance.

George
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Old   May 18, 2004, 04:40
Default Re: problem - RSM and laminar flamelet
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zxaar
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actually i should have written that as i rem that case started to diverge but soon i realised and set very low URFs for various things like enegery and momentum keepign this changing slowly and i got the convergence, so i honestly advise you to use lower urf (i don't know why it diverges for higher urfs but it does).

best of luck
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