turblent multiphase flow
Hi, all, when i learn cfx4, i have a question about the standard kepsilon model in turblent multiphase flow, such as gassolid flow. solid phase turbulent may be laminar, so, what's the equation about kepsilon model of solid phase? someone know this. thanks. zhu

Re: turblent multiphase flow
hi,all, maybe i don't explain my question clearly. when i simulate turbulent twophase flow, one phase is tubulence ,the other is laminar. cfx manual says 'if any of the phases is laminar, the LAMINAR string turns off the turbulence model for the relevant phase'. but from my results, the code doesn't turn off the turbulence. that the command concerns with the turbulence is
>>OPTIONS TURBULENT FLOW >>TURBULENCE PARAMETERS >>TURBULENCE MODEL PHASE NAME 'PHASE1' TURBULENCE MODEL 'KEPSILON' PARTICLE INDUCED TURBULENCE 'NONE' >>TURBULENCE MODEL PHASE NAME 'PHASE2' TURBULENCE MODEL 'LAMINAR' PARTICLE INDUCED TURBULENCE 'NONE' if the code don't turn off the turbulence ,so what is kepsilon equation, maybe i am wrong, i don't know. someone have the experience? thanks in advance zhu 
Re: turblent multiphase flow
Once I've read in the manual that both phases must have the same turbulence model, but I also have read this that you mentioned. Perhaps this formulation, turbulence for the continuous phase and laminar for the disperse phase, may be a numerical strategy to "turn off" the diffusive terms in the dipersed phase turbulence equations, perhaps. I don't know.
Regards, cfd guy 
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