Linear Temperature Profile
 

I am a newbie in CFD and doing calculations on a closed cubic cavity. The top wall is defined as cold and the bottom wall is hot. Now I want to define linear temperature profile around the four side-walls. How to input linear temperature profile ? Please help.

Re: Linear Temperature Profile
 

You can use either a UDF for boundary profiles to achieve this. Check out the Fluent UDF example on specifying a parabolic inlet profile. Your problem could simply follow a similar structure.