Ebook: Particle-based Viscoelastic Fluid Simulation

We present a new particle-based method for viscoelastic fluid simulation. We achieve realistic small-scale behavior.
of substances such as paint or mud as they splash on moving objects. Incompressibility and particle anti-clustering.
are enforced with a double density relaxation procedure which updates particle positions according to two opposing.
pressure terms. From this process surface tension effects emerge, enabling drop and filament formation. Elastic.
and non-linear plastic effects are obtained by adding springs with varying rest length between particles. We also.
extend the technique to handle interaction between fluid and dynamic objects. Various simulation scenarios are.
presented including rain drops, fountains, clay manipulation, and floating objects. The method is robust and stable,
and can animate splashing behavior at interactive framerates.
Introduction.
Previous Work.
Eulerian Simulation.
Lagrangian Simulation.
Simulation Step.
Double Density Relaxation.
Density and Pressure.
ncompressibility Relaxation.
Near-Density and Near-Pressure.
Surface Tension.
scoelasticity.
Elasticity.
Plasticity.
scosity.
nteractions with Objects.
Collisions.
Stickiness.
mplementation and Results.
Neighbor Search.
Rendering.
Results.
Conclusion.
Appendix - Prediction-Relaxation Scheme.