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how to define such like J(x, y=L) in Coefficient Form PDE in comsol

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Dear everyone, I have an expression like this: E(y)=-delta(y-L)[J(x,0)-J(x,L)], L is a constant, how can I write like J(x,L) in comsol when I use Coefficient Form PDE? because I also don't know the expression of J(x,y) which is related to other variable, I canot substitute L into J(x,y). thank you so much


0 Replies Last Post 26.02.2018, 08:31 GMT-5
COMSOL Moderator

Hello Xiangwei Huang

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