choosing turbulence model for gas phase while laminar model for solid phase

Haiqin · July 11, 2016, 11:48

Hello,
I am working with StarCMM+ for the simulations of fluidized bed. Do anybody know how to build a model that has the gas phase with turbulence model while solid phase with laminar model?
When I set up the physics model, it seems that I can only choose either laminar or turbulence for both gas and solid phases.
Any seggestions will be welcome.
Thank you in advance.

me3840 · July 11, 2016, 21:04

I don't understand why you would want to do this. Why would a solid phase need turbulence modeling? It's not a fluid.

Haiqin · July 12, 2016, 03:12

Quote:

Originally Posted by me3840

I don't understand why you would want to do this. Why would a solid phase need turbulence modeling? It's not a fluid.

No no no, I said I would like the gas phase to be in turbulence and the solid phase in laminar. In the simulation of fluidized bed, the solid phase is treated as a granular fluid.

marmot · July 12, 2016, 04:45

I don't think you need to worry about that, setup the gas phase with turbulence and introduce a Lagrangian Phase, for solid material particles, than you need to select the models. You can also look into DEM.

July 11, 2016, 11:48	choosing turbulence model for gas phase while laminar model for solid phase	#1
Haiqin New Member Haiqin Join Date: Jun 2016 Posts: 15 Rep Power: 9	Hello, I am working with StarCMM+ for the simulations of fluidized bed. Do anybody know how to build a model that has the gas phase with turbulence model while solid phase with laminar model? When I set up the physics model, it seems that I can only choose either laminar or turbulence for both gas and solid phases. Any seggestions will be welcome. Thank you in advance.

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July 11, 2016, 21:04		#2
me3840 Senior Member Join Date: Nov 2010 Location: USA Posts: 1,232 Rep Power: 24	I don't understand why you would want to do this. Why would a solid phase need turbulence modeling? It's not a fluid.

July 12, 2016, 04:45		#4
marmot Senior Member kevin alun Join Date: Sep 2011 Location: Germany Posts: 106 Rep Power: 14	I don't think you need to worry about that, setup the gas phase with turbulence and introduce a Lagrangian Phase, for solid material particles, than you need to select the models. You can also look into DEM.