I am simulation a molten steel flow in a ladle vessel. I work with multiphase system. Argon gas is injected from the bottom of the ladle vessel that was easy. However, I will add some more second phase like dissolved Aluminium in molten steel, its motion will be controlled by mass diffusion within the primary phase. The diffusion equation should be added through the interaction window between phases, where UDF will be used. However, I didn't apply it yet but I found within the UDF help that there is a Diffusion micro that I can use. But now the difficult part is how to assume a homogenous distribution of this second phase over the control volume. Could any one make comments about it? By the way it was applied by others using Phonics software, so I think Fluent should do handle it.
I am looking forward for your reply.
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