Anodized Heatsink

abeqhorie · March 18, 2013, 05:07

Hello.

I want to simulate anodized heatsinks. How do we set the heatsink as anodize material?

Thank you.

Boris_M · March 20, 2013, 04:59

Hi abeqhorie,

anodization is a surface treatment so the only boundary condition that would change is the roughness or radiation properties of the surface. The material itself does not really change, just in a very thin surface layer that shouldn't influence the overall behaviour. If the surface thermal conductivity changes then you can apply a contact resistance.
But all these values depend heavily onthe process and after treatment you had. For example anodizing and then having a surface paint on it which reflects and/or emits radiation differently than the other color etc.

I hope this helps,
Boris

March 18, 2013, 05:07	Anodized Heatsink	#1
abeqhorie New Member abe Join Date: Mar 2012 Posts: 1 Rep Power: 0	Hello. I want to simulate anodized heatsinks. How do we set the heatsink as anodize material? Thank you.

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March 20, 2013, 04:59		#2
Boris_M Disabled Join Date: Jul 2009 Posts: 616 Rep Power: 23	Hi abeqhorie, anodization is a surface treatment so the only boundary condition that would change is the roughness or radiation properties of the surface. The material itself does not really change, just in a very thin surface layer that shouldn't influence the overall behaviour. If the surface thermal conductivity changes then you can apply a contact resistance. But all these values depend heavily onthe process and after treatment you had. For example anodizing and then having a surface paint on it which reflects and/or emits radiation differently than the other color etc. I hope this helps, Boris