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[need help] How to set a boundary condition with psai does not equal to zero?
Posted 25.10.2009, 07:08 GMT-4 1 Reply
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I have constuct a 1D model with the general form, the function psai(x) which I needed must not be
vanished at the boundary x=1, how should I set the condition. Thanks alot. Do I need the weak constraint
to achieve the purpose?
vanished at the boundary x=1, how should I set the condition. Thanks alot. Do I need the weak constraint
to achieve the purpose?
1 Reply Last Post 25.10.2009, 08:01 GMT-4
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Posted:
2 decades ago
Hi
I'm not sure I fully understand you.
For me you set the boundary condition i.e at x=1 such that you give a given value at this location (Dirichlet condition), or a "slope" (Neumann condition), or you can combine.
Now you say "should not vanish" do you mean any value different from 0 ?
I do not believe a logical condition will work here in the boundary conditions
Hope this helps
Good luck
Ivar
I'm not sure I fully understand you.
For me you set the boundary condition i.e at x=1 such that you give a given value at this location (Dirichlet condition), or a "slope" (Neumann condition), or you can combine.
Now you say "should not vanish" do you mean any value different from 0 ?
I do not believe a logical condition will work here in the boundary conditions
Hope this helps
Good luck
Ivar