[rzahoor]

Hi, I am focusing the liquid stream coming out of the inner capillary by gas streams at the outlet of the capillary.
I have used
U_inlet_liquid = 0.116
U_inlet_gas = 2.87
U_walls = (0 0 0)
U_outlet = zeroGradient
frontandBack = empty

alpha.water
Inlet_water = 1
Inlet_gas = zeroGradient
outlet = zeroGradient
walls = zerpgradient

P_rgh

Outlet = fixedValue 0
everywhere else is zeroGradient

I am having this kind of situation. I think it is because outletBc it gives some effect back.
I am using InterFoam.
If Some one can help me it will be abig favour because I am stuck and iam new to open foam and just know basics.

Thanks