Anisotropic Particle Level-Set Method for Multiphase Fluid

Journal of Research and Practice in Information Technology, Vol. 46, No. 2/3, August 2014 133 Copyright© 2014, Australian Computer Society Inc. General permission to republish, but not for profit, all or part of this material is granted, provided that the JRPIT copyright notice is given and that reference is made to the publication, to its date of issue, and to the fact that reprinting privileges were granted by permission of the Australian Computer Society Inc. This paper presents how to track the surface of a multiphase fluid more accurately by using the particle level set method with anisotropic instead of spherical particles. While we use the weighted version of principal component analysis (WPCA) to construct the anisotropic particles, its computational cost is high. We adopt the distribution of particles from the directional derivative to generate the anisotropic particles. Compared to particle level set method, our approach provides more details of surface, corrects numerical dissipation, and preserves the volume of the fluid. Furthermore, we present particle-based fluid simulations with surface reconstruction that uses anisotropic particles.