Let's say the "wind.mat" in matlab. I was supposed to get 9 tensors of the velocity gradients, du/dx, du/dy, du/dz, dv/dx, dv/dy, dv/dz, dw/dx, dw/dy, dw/dz.
I calculate following dudx=gradient(u)./gradient(x), dudy=gradient(u)./gradient(y) …
but the gradient(y)=0 and gradient(z)=0 for this equally-spaced mat, results in a infinity value in the du/dy tensor.
Anyone can help me to correct the script for the gradient calculation?
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