Hi,
I used the alpha-equation:
( "MULES::explicitSolve(geometricOneField(), alpha1, phi, phiAlpha, volScalarField("Sp", fvc::div(voidfraction*U)),zeroField(), 1, 0) "),
after running the measures of max, min alpha was good but after entry particles in flow, the measure of alpha was very larger than 1 and very smaller than 0! and diverged finally.
I don't know why?
Elham