Where is the "KTGF" model?? CFB simulation

xiaokang · December 11, 2011, 17:20

Dear all,
I see many persons when they simulate the CFB, they use KTGF model to simulate the solid phase.
Does that mean just active the "granular" button and specify some phase property?
at this case ,how to specify the viscosity for solid in the material panel??
in E-E model the solid was considered as fluid as we know.

thankssssss!!!!!!

NAD · December 14, 2011, 20:23

hi. like you said you just activate the "granular" button in the secondary phase panel.
for the second question(how to specify the viscosity for solid in the material panel) you don't need to specify the viscosity of solid. enter any value (viscosity of air or viscosity of water for example). because i "think" for this model fluent don't take solid viscosity into account.

Sixkillers · December 15, 2011, 18:26

Quote:

Originally Posted by NAD

because i "think" for this model fluent don't take solid viscosity into account.

That's correct (ANSYS FLUENT User's Guide 13, page 1224, point 5)

December 11, 2011, 17:20	Where is the "KTGF" model?? CFB simulation	#1
xiaokang New Member xiaokang Join Date: Nov 2011 Posts: 6 Rep Power: 14	Dear all, I see many persons when they simulate the CFB, they use KTGF model to simulate the solid phase. Does that mean just active the "granular" button and specify some phase property? at this case ,how to specify the viscosity for solid in the material panel?? in E-E model the solid was considered as fluid as we know. thankssssss!!!!!!

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December 14, 2011, 20:23		#2
NAD Member Join Date: Oct 2011 Posts: 37 Rep Power: 14	hi. like you said you just activate the "granular" button in the secondary phase panel. for the second question(how to specify the viscosity for solid in the material panel) you don't need to specify the viscosity of solid. enter any value (viscosity of air or viscosity of water for example). because i "think" for this model fluent don't take solid viscosity into account.