[zhouxman]

Hi, everbody,

I solve UDS eqution with VOF, but the uds can't convergence while start the run, the diffusivity of uds is user defined at different phase, and is the function of temperture.

If it don't include the VOF but use the two domain，the gas and fluid wtih interior interface, the problem can be solve with fluent coupled boundary.
I think that maybe the fluent can't solve the diffusivity in interface cell(where the vof between 0 and 1), so how to solve this problem? or how to deal with the VOF interface like the fluent coupled boundary?

regards