I need to get flow around cylinders in a channel by creating a grid and specifying the intial flow velocity.
As its a 2d grid the mass is accumulated as the y value increases.
An inital stream function is calculated by adding up 4 points and taking the mean.
the stream function is then corrected until the change each time is smaller than a given value
The problem i have is that not all the 6 cylinders are showing up on my final contour plot