Expression of Liquid Flow with Density Change Model in Virtual Liquid Manipulation

Abstract

In this paper, a model to realize an interactive manipulation of virtual liquid using a virtual vessel is described first. Then, we extend this model for the liquid flow. We consider that a liquid vessel is separated into a grid and define the density and the average velocity of liquid in each grid. We decide the movement of a liquid using these value, then we can realize an interactive manipulation of the flowing liquid. Our system with this proposed model makes it possible to catch the liquid, then to flow and spill the liquid by tilting it.