Hi,
I have suceeed in making a code for water flow in unsaturated media by using FAESOR, I am having a trouble in calculating the velocity from this nodal pressure in x and z direction. Flux equation is Q = K(nabla) (Ψ+1).. (I did not find the symbole for nabla in your symbols for writing the BODY).
For this I use Flux = ((Ns{j})'*((HYC* (Jac * w(j)))*Ndersp')')',,, where HYC is the similar to Hydraulic conductivity similar to heat conductivity.
Above formula gives me Flux, a array having two elements,
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