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Copper Heat Sink with GaAs atop

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Hello all.

I am trying to model a problem attached as a picture, it consists of a copper heat sink, and a GaAs block atop it. A voltage of 10V is applied as a Terminal to the GaAs while ground exists at the base of the heat sink. However, when modelling this problem I encounter an error, the relative error is greater than relative tolerance error.

Wondering if you have any suggestions how to fix this problem. I can upload my mph file if needed.

Thank you.


1 Reply Last Post 2 mar 2015, 02:25 GMT-5

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Posted: 9 years ago 2 mar 2015, 02:25 GMT-5
The error message may be due to not having enough Dirichlet constraints. You can look for more suggestions from others as I am very new to comsol.

The error message may be due to not having enough Dirichlet constraints. You can look for more suggestions from others as I am very new to comsol.

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