hi i have to analyse the soldification behaviour of a phase change material encapsulted in a cylinder wat r the BC to be given and how to model it.

the tutorial is avilable only for casting with flow. in my case no flow will occur. the material will be sealed inside a cylinder. pls tell me how to do it.

if there is no flow, only heat transfer and solidification, no boundary is needed to specify, i think

thanks for ur reply

since it is a cylinder, i modeled half of it. but how to specify the interior material in gambit. what boundary type i should use.i gave wall for the cylinder and axis for the mid plane. in fluent i cant change the default interior into any material. pls help