a question about bubbleFoam

xck1986 · June 18, 2011, 12:10

Hi FOAMusers,

I want to use the bubbleFoam solver to simulate a liquid jet in a air cross flow. The liquid jet is water, which is injetted by a nozzle with a diameter of 0.5mm.

When I user bubbleFoam to simulate this case, I am not sure which values I should set for da and db (diameters of phase A and phase B). From literater I know that these two diameters are used to calculate the drag force.

Could anyone tell me, how can I choose the values for da and db?

thanks in advance!!!

kaifu · June 21, 2011, 09:30

trying to use solver twoPhaseEulerFoam instead. There you can choose "dragPhase a;" and thus the drag force is only in function of da and you dont need to worry about db.

June 18, 2011, 12:10	a question about bubbleFoam	#1
xck1986 Member chenkai Join Date: May 2010 Location: munich Posts: 44 Rep Power: 15	Hi FOAMusers, I want to use the bubbleFoam solver to simulate a liquid jet in a air cross flow. The liquid jet is water, which is injetted by a nozzle with a diameter of 0.5mm. When I user bubbleFoam to simulate this case, I am not sure which values I should set for da and db (diameters of phase A and phase B). From literater I know that these two diameters are used to calculate the drag force. Could anyone tell me, how can I choose the values for da and db? thanks in advance!!!

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June 21, 2011, 09:30		#2
kaifu Member Kai Join Date: May 2010 Location: Shanghai Posts: 61 Blog Entries: 1 Rep Power: 15	trying to use solver twoPhaseEulerFoam instead. There you can choose "dragPhase a;" and thus the drag force is only in function of da and you dont need to worry about db.