Sinclair Model + secondary turbulence
I met a problem when simulating two-phase flows using Sinclair model + secondary turbulence model in FLUENT4.5.6.
1> Turn on (Sinclair model + secondary turbulence). However, the equations to solve do not include particle-phase k & epsilon automatically.
In this case, the simulation gives very good results!
2> Turn on (Sinclair model + secondary turbulence). Also, include particle-phase k & epsilon in the equations to solve.
This time, the (time-dependent) simulation diverges!
3> only turn on Sinclair model (without secondary turbulence)
The simulation results are not good.
Can anybody tell me what is the difference between case-1 and case-2? I tried to seek more details in FLUENT manual, but can't find the answer. I want to clarify the governing equations and auxillary relations employed in the simulation.
Thanks a lot in advance.
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