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Multiphase PIC Fluids

A multiphase fluid simulation using the affine particle-in-cell method (APIC), based on the MultiFLIP paper by Boyd and Bridson (link to paper here).

Demonstration Videos

A rendered view of water flowing through a small opening from one container to another. As the liquid falls through, air bubbles rise up through the liquid. Rendered using Houndini.

A rendered view of oil and water. The less dense oil begins the simulation underneath the higher density water. Since the liquids don't mix, they form a complex interface. The two then separate out again into layers, with the water resting underneath the oil. Rendered using Houdini.