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shuo November 9, 2009 07:22

Corner B.C.
 
Hi

I am trying to simulate supersonic flow past a forward facing step using Riemann solvers at cell interfaces (i+1/2, j+1/2 etc). Not to sure how to implement boundary conditions at the corner.

i.e.
The Corner is at (i + 1/2, j + 1/2) with flow traveling in increasing i direction

The B.C. for ghost pt (i+1, j) assuming zero pressure gradient, is it

P_(i+1, j) = P_(i, j)
or
P_(i+1, j) = P_(i + 1, j+1)
or
P_(i+1, j) = P(1, j+1)

or something completely different?:confused:

Cheers,
Shuo


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