Particles Out Error (80% Particles out)

edited January 24 in DualSPHysics v4.2
I am executing a simple casting simulation. Fluid flowing from Reservoir to Mold. During a simulation of this kind, 80% of particles went out (15 mil to 3 mil). I am attaching the xml and stl file of this simulation and also the snap of the alst stage of simulation with Particles Out.

Please can you list out the causes for 'Particle Out Error'


  • Particles are able to leave the domain under three conditions;
    1. They leave the specified domain limits
    2. Their velocity is higher than the specified maximum speed (speedsound)
    3. Their density exceeds the specified range (default 700-1300)
    This are the three conditions which cause this issue, so you will have to play around until you figure out which case causes it. I assume initially that it is because of density fluctuations but you have to read your log/output files to get a clear view of what is causing the particles to leave.

    Kind regards
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