CFX import velocity
 

i am modeling a domain with 2 phases (air-water)
for defining model, i selected continues fluid for air and water.i export water.superficial velocity(x,y,z) to a new file and import it to a new domain with sediment and put it on the sediment but sediment volume fraction dosn't have any change. can you help me?

Do you mean your sediment volume fraction initial condition is ignored? Can you post the CCL?

my sediment topography dosnt have any change
it behave such a rigid bed without any change (without any erosion)
i import the velocity bc-profile from water-Air modeling but i increase y-axis height of profile to putting it on the sediment.
can i send .def file to your e-mail?

it is ccl file of modeling

I am not sure, but I suspect CFX needs the velocity variable to initialise the velocity in the porous region, not the superficial velocity variable. I think the superficial velocity variable is calculated from the velocity variable, not the other way around.

do you have proposal to modeling this problem.
my model have 3 phases (air water sediment). sediment phase is assumed as dispersed solid and water is flowing on it. sediment topography changes is required.

CFX can model many applications of this, but some it cannot. For instance CFX does not have a sedimentation/scouring model.