The primary purpose of the NVIDIAPhysX technology Fluid Demo is to illustrate Smooth Particle Hydrodynamics (SPH). The demo contains two different scenes, the Outdoor and the Logo Scene.
Outdoor Scene This scene showcases SPH fluid flooding an outdoor area. As soon as the demo is started, a flood occurs and interacts with a stack of rigid bodies. Switch from dark water to clear water, to oil, or just show the real nature of fluids: spheres.
Logo Scene The Logo Scene showcases SPH fluid simulation in an enclosed environment.