Add a custom body force to the momentum equation, f=f(x,y,z)
I wanted to add a force to the alpha-phase moment equation.
This is a funciton of x, y and z location, which force is not dependent on time. For an exmaple, customF = customF(x,y,z) where i,j and k are indexing counters. Below is the folmula expression that I'd like to use.
if(x(i)>x0 or x(i)<xl )
customF(i) = a*x(i-1)*y(j)*z(k)
customF(i) = 0;
The vector customF is composed of three components (x,y,z). How can I write this force in the OF?
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