Learning Forum

[ngocminh2532003]

Hello,
I am simulating the MEMS model on Ansys using multiphysics simulation. I created a block around the object and gave it air material. I want to analyze its effect only on the object's convection, so I do not add any electric material property. But my simulation has a problem. Can somebody help me to check my simulation?
Or there is any way to analyze the object's convection with the air that does not have to create a block around the object?
Thank you,
Ngoc Minh 

[Erik Kostson]

Hi

Does not need to model the air - just use a convection boundary condition in the the thermal analysis.

Instead also of connecting the two analysis use the thermal-electric where you do it all in one (so both thermal+joule heating due to an electric part/voltage).

Search for thermal electric there are many tutorials.

Erik

 

[ngocminh2532003]

 

Hi,
Thanks for your reply. Is there any difference between connecting two analyses and doing a thermal-electric analysis in one?
Regards, 
Ngoc Minh

 

[Erik Kostson]

 

Yes the first one is a one way coupled analysis, and the later a 2 way coupled (e.g., here resistivity can be a function of temp and be updated throughout the analysis and other direct effects can be accounted for in 2 wat coupl.).

All the best

Erik