Abstract
Graphics of falling-water texture are produced by the frame work to combine the sub-particle-scale (SPS) texture model for splash with the particle method for a physical skeleton. A texture of splash is described as the diffusion process of mist by the random walk model. A gas-liquid two-phase-flow model is used for a calculation of falling-water and resultant air-flow field. Governing equation of the pressure that express the compressibility of gas phase is applied. The computational program is improved so that a stable solution is provided in the gas-liquid interface under high-level change of pressure. A conventional diffusion model is improved so that the unsteady and non-uniform structure of air flow affects directly on the motion of mist. The hybrid tracking model of a droplet and an air bubble is proposed on the basis of a random walk model. Finally, the graphics of falling water are drawn by the ray tracing technique.
