Abstract
In this paper, we propose a procedural animation method of diffusion phenomenon of sand ascending in water. In first step, we create velocity field of sand ascending in water using the FLIP method. And it is a three types of "for coarse sand," "for the medium sand", "for the fine sand," based on the classification method of Geotechnical Society criteria. Next, we combine the noise based simulation to represent a unique movement by interfering with the sand movements and various sand and water are affected by changes in the complex water flow. In our method, we can add the details of motion by adding particles individually to a noise in order to reproduce the like interference with water. And we can reduce the calculation cost of the density by using the particle volume rendering. Our simulation method, it is possible to efficiently visualize the sand ascending in water.
