I added a constant heat flow source to the pipe but I couldn't see any temperature increase to the fluid which flows

I have added the necessary inputs that I have given to each block in the image attached. Basically, I need to model the heat transfer from the motor to the heat exchanger which i just replaced to a pipe with a constant heat flow source (which will represent the cooling power needed) . For the above mentioned objecvtive, suggest me if you have better solutions and ideas and also if you could help me understand why this solution doesn't work and how to fix it that would be great.

[Ashwin]

@Yifeng Tang : Hi Tang, thought you could help me fix this issue.. if you could direct me to the right path that would be appreciated. Looking forward to hear from you!

Answer 1

[Yifeng Tang]

This should work fine. This is how heat is added to the coolant in some examples in the Documentation as well, like Electric Vehicle Thermal Management. Snapshot below: