Advanced simulation thermal led dissipation siemens nx

[Davidbarrel]

Hi to all
I have a simple lighting fixture model, i would like to calculate the temperature on the led. I put the fixture in the fluid mesh (air) but the heat dosen't excange betwen the body an the air. So the fluid temperature is always 25 degree. how i can connect the body fixture and the fluid domain?
Thanks to everybody
Regards

 

[Tuw]

Hello, the thermal coupling between structural mesh and fluid mesh is automatically done by the solver, provided the meshes are physically near (touching) within tolerance. The reason you are not seeing the heat transfer maybe the meshes are too coarse. Maybe you need to define boundary layer mesh for the fluid domain...

Kind regards,
Tuw

http://www.dtsys.my

http://www.dtsys.sg

 

[Davidbarrel]

hi Tuw
thanks for your reply, now the heat exchange works correctly.

best regards
David