[songsh0227]

hi...

i have a some question about 2-phase simulation. air and water

i designed discharge structure like fig.1 and enter the boundary condition also

result of the simulation fig.2

to my knowledge, inlet pipe filled of the water and then going up through the pipe.

in my result inlet pipes don't filled with the water but the water going up through the pipe like fig.2

initial conditions are empty.

i entered initial condition u,v,w velocity zero, and pressure 0 pa

water VF : 0, air VF : 1

how do i solve the problem?

please help.

[ghorrocks]

That looks quite possible to me. A big air bubble gets trapped in the horizontal pipe section. The air bubble will pop out in time I suspect. So I think what you show looks quite reasonable.

[songsh0227]

thank you for your reply.

in the above case using mixture model??