Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
natural convection 3D
Posted 2016年3月3日 GMT-5 08:16 Heat Transfer & Phase Change Version 4.1 0 Replies
Please login with a confirmed email address before reporting spam
I am using conjugate heat transfer module to simulate the natural convection around a rectangular fin heat sink for LED. only the half of the model is simulated because of the symmetrical geometry.
Boundary conditions:
air side :
all exterior surfaces are set as open boundaries at an ambiant pressure
volume force
symmetry condition
solid side:
heat flux on the bottom surface of the heat sink
symmetry condition
Results: the air velocity is very small and the temperature is very high
The temperature is not diffused on the bottom surface of the air domain
Can anyone help me to solve this problem please?
Thanks in advance.
Hello Khaoula Khaoula
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.