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What is the transient solver of Comsol? FETD or DGTD?

Posted 11 avr. 2017, 23:32 UTC−4 Studies & Solvers 2 Replies

Wending Mai
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Hi,

I am interested what kind of solver is used by Comsol transient solver. FETD or DGTD?
It use FEM for stationary solver, right?

Thank you.
2 Replies Last Post 12 avr. 2017, 20:30 UTC−4
Jeff Hiller COMSOL Employee

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Posted: 7 years ago 12 avr. 2017, 08:30 UTC−4
COMSOL uses a range of numerical methods depending on the problem. See www.comsol.com/community/forums/general/thread/45905 as well as the documentation.
One of the main news with the upcoming release of 5.3 is the expanded availability of boundary element methods, see www.comsol.com/video/introducing-version-5-3-of-the-comsol-multiphysics-software .
Best regards,
Jeff
COMSOL uses a range of numerical methods depending on the problem. See https://www.comsol.com/community/forums/general/thread/45905 as well as the documentation. One of the main news with the upcoming release of 5.3 is the expanded availability of boundary element methods, see https://www.comsol.com/video/introducing-version-5-3-of-the-comsol-multiphysics-software . Best regards, Jeff
Wending Mai
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Posted: 7 years ago 12 avr. 2017, 20:30 UTC−4
Hi Jeff,

Thank you for your reply.
In the web link, "Several different methods are used in the add-on modules, including finite element analysis, the finite volume method, the boundary element method, and particle tracing methods, but the emphasis of COMSOL Multiphysics is on the finite element method.", but DGTD is not included in the previous disccusion.

To be specific, does COMSOL use DGTD for Transient Electromagnetic Problems?

Because Ansys HFSS uses DGTD as its transient solver, I just want to check out if COMSOL uses the same kind of solver.

Thank you.


Hi Jeff, Thank you for your reply. In the web link, "Several different methods are used in the add-on modules, including finite element analysis, the finite volume method, the boundary element method, and particle tracing methods, but the emphasis of COMSOL Multiphysics is on the finite element method.", but DGTD is not included in the previous disccusion. To be specific, does COMSOL use DGTD for Transient Electromagnetic Problems? Because Ansys HFSS uses DGTD as its transient solver, I just want to check out if COMSOL uses the same kind of solver. Thank you.

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