[fshak92]

Hi FOAMers,

In icoFoam, after making the UEqn matrix, we use the coefficients of this matrix to do the PISO loops.
Does anybody know that, if we change the velocity after solving the UEqn(and before entering the PISO loop), how we can update the coefficients of UEqn with new modified velocity?
Simplified form of the problem:

- solve(UEqn == -fvc::grad(p));
- Modifying 'U'
- ?
- entering PISO loop

Tnx in advance.