[kj878]

So I'm fairly knew to StarCCM and I need to set up my initial conditions such that my wall temperature changes linearly from one end to the other. I believe I have to write a field function to do this but. Unfortunately I have zero experience in writing programs/codes and I have no idea how to write field function formula for my problem.

Wont someone be kind enough to help me write a field function?

My problem statement is a fluid flowing through a pipe, length say 1m and the temperature of the wall varies through the length.

From L=0 to L=.5 I need my wall temp to be at 150C. From L=.5 to L=.75, the wall temp needs to drop from 150C to 70C, linearly. Similarly, from L=.75 to L=1m, the wall temp needs to drop from 70C to 35C, linearly as well.

Can someone please help me with this??
Many thanks in advance!