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change in thermal conductivity with respect to temperature

Posted 28 juil. 2014, 18:49 UTC−4 Heat Transfer & Phase Change, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 4.3a, Version 4.3b 4 Replies

Karan Bikkannavar
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Hello,

Is it possible to simulate a case wherein, the thermal conductivity of the material changes with respect to the temperarture ?

Please let me know.
4 Replies Last Post 29 juil. 2014, 16:51 UTC−4
Pieter Westerik
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Posted: 1 decade ago 29 juil. 2014, 02:46 UTC−4
Yes, make the thermal conductivity user defined and put for the value of the thermal conductivity some formula in which you use 'T' (probably) for the temperature. Or you can put your formula in the material property of the relevant material.
Yes, make the thermal conductivity user defined and put for the value of the thermal conductivity some formula in which you use 'T' (probably) for the temperature. Or you can put your formula in the material property of the relevant material.
Karan Bikkannavar
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Posted: 1 decade ago 29 juil. 2014, 15:26 UTC−4
thank you for the reply.
The actual problem is that if its possible to simulate thermal conductivity change with temperature change.!

I am running a Joule heating simulation to see temperature distribution on a boundary(Aluminum material) using 'step' input/function for a specific time period. I obtain the temperature results for every time steps.
Next, I want to run a case wherein Thermal conductivity of Aluminum changes with temperature change at every time step.

Can it be done??

thank you for the reply. The actual problem is that if its possible to simulate thermal conductivity change with temperature change.! I am running a Joule heating simulation to see temperature distribution on a boundary(Aluminum material) using 'step' input/function for a specific time period. I obtain the temperature results for every time steps. Next, I want to run a case wherein Thermal conductivity of Aluminum changes with temperature change at every time step. Can it be done??
Josh Thomas Certified Consultant
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Posted: 1 decade ago 29 juil. 2014, 15:52 UTC−4
Yes. You can specify temperature dependent material properties. In your case, simply make your thermal conductivity a function of the temperature variable, T.

--
Best regards,
Josh Thomas
AltaSim Technologies
Yes. You can specify temperature dependent material properties. In your case, simply make your thermal conductivity a function of the temperature variable, T. -- Best regards, Josh Thomas AltaSim Technologies
Karan Bikkannavar
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Posted: 1 decade ago 29 juil. 2014, 16:51 UTC−4
Thank you for the quick reply.
Thank you for the quick reply.

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