Problem with Flowsimulation

Hello at all!

I am new in the forum and i am a student who uses this Software for the firt time.

I have got a problem with my Flowsimulation results.

If I difine all materials, e.g. aluminium and PTFE, the fluid won't become hotter during the simulation.

Fluid temperature is 20 °C at the inlet and 20 °C at the outlet. It seems that the simulation doesn't change the fluid temperature and only the material temp.

If i don't difine the materials it is working better.The fluid temperature rises from 20°C to 26 °C.

Which method ist the right one?

I want to simulate a liquid cooler. The results should regard the fluid temperature and the solid temperature.

Can someone help?

Thanks in advance!

Henning

SolidworksSimulation