[skaboy607]

Hi

I hope someone is able to help me with a model I am trying to run. My problem is this.

One pipe 1m long with a given diameter. This pipe contains a certain fluid, properties known that will undergo a solidifcation and melting process. In the center of this pipe is another pipe which has water flowing through it at a given temperature. I can't seem to set this up in Fluent.

The water pipe doesnt seem to be a problem (if i was modelling just the water) set an inlet, outlet and wall BC's. For the other pipe I have I wall condition but how do I define the fluid within that pipe? There doesnt seem to be the option to do this?

Thanks in advance for any help you might be able to provide.

Billy