[petsc-users] Neumann Boundary Condition with DMDACreate3D

[Gourav Kumbhojkar]

Hi,

I am trying to implement a No-flux boundary condition for a 3D domain. I previously modeled a no flux boundary in 2D domain using DMDACreate2D and “PETSC_BOUNDARY_MIRROR” which worked well.
However, the manual pages say that the Mirror Boundary is not supported for 3D.
Could you please point me to the right resources to implement no flux boundary condition in 3D domains?

Regards,
Gourav K.
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