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How to add the relationship between electrical conductivity and thermal conductivity
Posted 30.03.2022, 12:09 GMT-4 Electromagnetics, Electromagnetic Heating, Low-Frequency Electromagnetics Version 5.6 1 Reply
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My question is 1. We are trying to simulate the metal tungsten layer for its electrical and thermal behavior. Does comsol has already consider the relationship between electrical conductivity and thermal conductivity (as Wiedemann-Franz Law) when we input Electric Currents module,Heat Transfer in Solids module and Multiphysics module with electromagnetic heating? Actually, from above those modules, do not observe the equation to correlate between them. 2. If do not consider, how to write the function to consider that? For electrical conductivity, we have already consder TCR effect (as 8.9e6[S/m](1-0.001[1/K]T). But thermal conductivity not, just use default value 174[W/(m*K)]. Thanks.
Best and Regards, Jerry
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Hello Jerry,
- COMSOL uses the material properties you selected or provided. Unless those properties verify the WF law, the results of the simulation won't be consistent with it either, or at least have no particualr reason to be.
- See my response to your other post
Jeff
-------------------Jeff Hiller