Hi David!
On 08/29/2012 10:04 AM, David Libault wrote:
Hi !
I could install sfepy and run the examples wihout any issue so far. Congratulations !
In the "examples/diffusion/poisson.py" example, the Dirichlet conditions are explicitly specified on the "Gamma_Left" and "Gamma_Right" regions, but the Von Neumann boundary conditions (grad(T).n = 0) on "all other" surfaces are not specified although the solution does complies with them...
How is this working ? Are the "0 Von Neumann conditions" implicit in that case ? What am I missing ?
The Dirichlet boundary conditions are associated with the nodal values, but the Von Neumann conditions are specified by boundary integrals (in the week form), so the "zero integrals" corresponding to the "0 Von Neumann" conditions vanish.
Regards Vladimir
David.
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