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Heat source with a heat flow in one direction

38 Views, 5 Replies
02/10/2018 5:30 AM

if the heat source and the heat sink both are exposed to the air ( natural cooling) 

but in my analysis, just need to dissipate heat by the heat sink. don't need any heat flow by convection from  

the back surface or tips of the heat source directly to the air, is there is any way to do that without covering the

heat source with an insulation material?

suppose the heat source has a cubic shape 


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Message 1 of 5 ( Views: 38 )

Re: Heat source with a heat flow in one direction

02/10/2018 12:33 PM

Why not just suppress the air from the mesh? Then you have only conduction available.

Also if you run conduction only, switch the turbulence model to laminar.


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Message 2 of 5 ( Views: 28 )

Re: Heat source with a heat flow in one direction

02/10/2018 2:43 PM

but i still need to dissipate heat by convection from the heat sink base and fins.

 

it is  like i am isolating the heat source ,  


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Message 3 of 5 ( Views: 25 )

Re: Heat source with a heat flow in one direction

02/11/2018 5:48 PM

it is ok, 

i just enshrouded the heat sources with a plastic cover to reduce the heat dissipation from the source back surface. 

but it is good to know if there is another way to do it.


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Message 4 of 5 ( Views: 17 )

Re: Heat source with a heat flow in one direction

02/11/2018 7:48 PM

OK, let me try again. 
If am wrong this time, we might need a picture ;)

 

You wish to control the flow of heat from the source into specific directions? Into a chassis and heat sink for example?

You could add a suppressed material around it. Or use the Compact Thermal Model?


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Message 5 of 5 ( Views: 15 )