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Possibility to implement of subroutine to COMSOL.
Posted 7 janv. 2021, 16:32 UTC−5 General, Equation-Based Modeling 1 Reply
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Hi everyone,
I work on a reasearsh project on GaN based transistors, I need to do a simulation of the electric, thermal, mechanical, and piezoelectric properties on COMSOL, however, the electrical module is Missing. Is it possible to write my own program and implement it in COMSOL to solve it in a coupled manner with other modules. If yes, what language should I use, and it would be helpful to provide documents on the subject.
Thank you for you help. IZ.
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Hello Ikram,
It is possible in COMSOL to add your own equations through the GUI. This is referred to as "Equation-based modeling" in the documentation. Such equations supplied by you can be coupled, in a model, with pre-implemented ones.
Whether it makes sense for you to implement yourself an equation that is available pre-implemented in a module that your license does not carry, or whether you'd be better off adding that module to your license, depends on such factors as how well you know the equations to you need to solve (including their boundary conditions), which equations those are (Some are much trickier than others to implement), what numerical tricks may be needed to employ to solve those equations in a stable manner, etc.
Best regards,
Jeff
-------------------Jeff Hiller