[fsch1]

Hello Foames,
i've got a simple case setup: rain from above on a box, with some wind. The simulation is running perfectly if I don't add rain.

But if I run the simulation with rain, it crashes directly after the first droplet impact.

The extruded wallFilm-Region is 1.5mm thick, the droplet-diameter 0.75-2mm, with a velocity of 7m/s and a wind velocity of 5m/s. So I think the model should handle it well. I copied the fvSolution, fvSchemes etc from the Hotboxes-Tutorial.
So I think it's a problem of the numeric..

Does anybody have an idea where to change the numeric to get it running?

[fsch1]

with the fvSolution settings for

fluid field:

PIMPLE
{
momentumPredictor on;
nOuterCorrectors 2;
nCorrectors 4;
nNonOrthogonalCorrectors 0;
}

and the wall film:
PISO
{
momentumPredictor true ;
nOuterCorr 1;
nCorr 2;
nNonOrthCorr 0;
}

it's running...