COMSOL Modeling help (ambient air around a thermoelectric module)

[ChadThePianist]

Hello everyone, I am wondering how to model ambient air around a thermoelectric module in COMSOL. I am fairly new to the software and am doing undergraduate research revolved around it. Any help or pertinent examples would be appreciated. I can send/post screenshots and or .mph files if it would be valuable.

~ Chad

 

[DrClaude]

How complicated does the modelling of air need to be? Simulating still air is easy, convection not so much...

 

[ChadThePianist]

How complicated does the modelling of air need to be? Simulating still air is easy, convection not so much...

Still air will be okay. Quite honestly, I am not so experienced with thermo to know how convecting air will behave differently. I l just need some blocks of air on the bottom of the TE and for the model to work and compile in a time dependent frame.

 

[DrClaude]

You can use the Heat Transfer module in COMSOL for this. If you go to the COMSOL Application Gallery (search for "heat transfer electronics"), you will find many examples of how this can be done, with and without convection. See for instance

https://www.comsol.com/model/electronic-chip-cooling-47721
https://www.comsol.com/model/convection-cooling-of-circuit-boards-8212-3d-natural-convection-449