Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
[need help] How to set a boundary condition with psai does not equal to zero?
Posted 25 oct. 2009, 07:08 UTC−4 1 Reply
Please login with a confirmed email address before reporting spam
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 oct. 2009, 08:01 UTC−4
Please login with a confirmed email address before reporting spam
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