Power Particles: An incompressible fluid solver based on power diagrams

摘要

This paper introduces a new particle-based approach to incompressiblernfluid simulation. We depart from previous Lagrangian methodsrnby considering fluid particles no longer purely as material points,rnbut also as volumetric parcels that partition the fluid domain. Thernfluid motion is described as a time series of well-shaped power diagramsrn(hence the name power particles), offering evenly spacedrnparticles and accurate pressure computations. As a result, we circumventrnthe typical excess damping arising from kernel-based evaluationsrnof internal forces or density without having recourse to auxiliaryrnEulerian grids. The versatility of our solver is demonstratedrnby the simulation of multiphase flows and free surfaces.