[petsc-users] CFD code with immersed boundary method

Arun Kamath arun.kamath.m at gmail.com
Wed Nov 7 08:31:07 CST 2012

I am working with a CFD code  where I need to solve the Poisson Pressure
equation. We solve a two phase flow problem which results in a jump in the
coefficients and a non symmetric system.

The boundary conditions are fulfilled using immersed boundary method ghost
cells at the solid boundaries of the domain.
I read about the DAs to deal with the boundary conditions, but they are
applicable to only "IJK" matrices as per my understanding.
So when I am using the "Aij" (CSR) matrix, how would you suggest I deal
with the ghost cells of the physical domain while forming the matrix and
the vector?

Thanks a lot.
Arun Kamath
PhD Stipendiat
NTNU, Trondheim
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