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Increasing temperature gradient as boundary condition

Posted 26 apr 2012, 05:11 GMT-4 Fluid & Heat, Heat Transfer & Phase Change Version 4.2a 2 Replies

Long Li
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Hello,

I'm trying to model a chip moving in a chamber which has an increasing temperature gradient inside. We want to show how the motion of the chip affect the temperature of the surrounding gases. I spent several days to understand the deformed mesh but I have no clue about this problem by far. I'm new to COMSOL but really want to play it well.

Thanks.
Leon
2 Replies Last Post 29 apr 2012, 12:53 GMT-4
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 26 apr 2012, 14:38 GMT-4
Hi

another way, if noting changes drastically except for your "sliding" movement, would be to use Geoemtry Assembly mode with a linear common boundary line somwhere in the middle of your air/gas interface, and slide the geometry, and use COMSOL to map the dependent variables across your sliding boundary. It works in ACDC linear motors, so why not in your case (just a suggestion, have a look)

--
Good luck
Ivar
Hi another way, if noting changes drastically except for your "sliding" movement, would be to use Geoemtry Assembly mode with a linear common boundary line somwhere in the middle of your air/gas interface, and slide the geometry, and use COMSOL to map the dependent variables across your sliding boundary. It works in ACDC linear motors, so why not in your case (just a suggestion, have a look) -- Good luck Ivar
Long Li
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Posted: 1 decade ago 29 apr 2012, 12:53 GMT-4
Hi Ivar,

Thanks for the reply. Also, could u send me a link or some details, examples about the ACDC motors?

Leon
Hi Ivar, Thanks for the reply. Also, could u send me a link or some details, examples about the ACDC motors? Leon

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