Hi, I am working on a finite-volume numerical method project. I not
very good at programming or numerical methods but know enough to
complete this project. I was wondering if anyone had any ideas how
best to represent this grid in C. It is Xmax long with N points with
deltaX = Xmax/N and each point Xi is located at (i-1/2)*deltaX, i = 1,
2, 3, ... N. It also has cell interfaces located at Xi+1/2 and Xi-1/2.
Furthermore, each interface has a + side and a - side.
Obviously I can represent the grid by Q[N+1] and can call Q[i+1],
Q[i-1], etc. The part I am unsure about is when I need to find Q[i
+1/2]+, Q[i+1/2]- and so on. The only way I could come up with is to
create Q[N+1] and Qhalf[N+1][2] where the second index represents a +
or -. Are there any better ways using C?
Thank You,
Stephen
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