I am using CBC.PDEsys to compute u, p, c
u-velocity
p-pressure
c-temperature
n- is the cylinder surface normal direction
1) How to compute the derivative dc/dn (partial derivative) and
2) I want to integrate over the cylinder surface. is there a way to plot int(dC/dn )ds over the surface?
Because I want to compute Nusselt number on Circular cylinder surface.
