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Boundary condition across a domain
Posted Jul 29, 2017, 2:49 p.m. EDT Modeling Tools & Definitions, Parameters, Variables, & Functions Version 5.2 1 Reply
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Hello all,
I am solving a system of two general PDEs, each defined on a different domain. I would like to impose a boundary condition relating normal derivatives across the interface of the two domains. How would I do this in COMSOL?
This is similar to trying to solve the Poisson equation with two different dielectrics where the displacement field has to be continuous across the interface. Is there a way I could see how is it implemented in COMSOL in the AC/DC module?
Thank you for help,
Marcin
I am solving a system of two general PDEs, each defined on a different domain. I would like to impose a boundary condition relating normal derivatives across the interface of the two domains. How would I do this in COMSOL?
This is similar to trying to solve the Poisson equation with two different dielectrics where the displacement field has to be continuous across the interface. Is there a way I could see how is it implemented in COMSOL in the AC/DC module?
Thank you for help,
Marcin
1 Reply Last Post Jul 31, 2017, 5:07 p.m. EDT
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Posted:
7 years ago
So it seems to me that the the normal of the "conserved flux" as defined by the COMSOL manual is the same on both sides of a boundary for the two PDEs.
Therefore by appropriate scaling of the coefficients of the two PDEs, I can set the boundary condition that I desire.
Marcin
Therefore by appropriate scaling of the coefficients of the two PDEs, I can set the boundary condition that I desire.
Marcin