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foam-extend4.1-coherent-io/applications/solvers/heatTransfer/buoyantPisoFoam/UEqn.H

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C

// Solve the Momentum equation
fvVectorMatrix UEqn
(
fvm::ddt(rho, U)
+ fvm::div(phi, U)
+ turbulence->divDevRhoReff()
);
UEqn.relax();
if (piso.momentumPredictor())
{
solve
(
UEqn
==
fvc::reconstruct
(
fvc::interpolate(rho)*(g & mesh.Sf())
- fvc::snGrad(p)*mesh.magSf()
)
);
}