Smoothed Particle Hydrodynamics (SPH) simulation of the flow during rotational molding

The fluid flow during the Reactive Rotational Molding (RRM) is very complex due, mainly, to the competition between two forces: the gravity and the viscosity forces. The fluid flow process is modeled by the flow of a Newtonian fluid in a horizontal cylinder rotating around its main axis. A lagrangien meshless method called Smoothed Particle Hydrodynamics (SPH) is applied to simulate the free surface flow under gravity of a reactive fluid. This model allows predicting the flow during the first time laps of reactive rotational molding where viscosity is still low before gelation.