An Efficient Sleepy Algorithm for Particle-Based Fluids. (12th November 2014)

• Record Type: Journal Article
• Authors: Nie, Xiao; Chen, Leiting; Xiang, Tao
• Other Names: Cai Yiyu Academic Editor.
• Is Part Of: International journal of computer games technology. Volume 2014(2014)
• Publication Date: 2014-11-12
• Subjects: Computer games -- Design -- Periodicals; Computer games -- Programming -- Periodicals; Jeux d'ordinateur; Jeux d'ordinateur -- Programmation; Computer games -- Design; Computer games -- Programming; Electronic journals; Periodicals; 794.81
• DOI: 10.1155/2014/806095
• Languages: English
• ISSNs: 1687-7047

Abstract

Abstract : We present a novel Smoothed Particle Hydrodynamics (SPH) based algorithm for efficiently simulating compressible and weakly compressible particle fluids. Prior particle-based methods simulate all fluid particles; however, in many cases some particles appearing to be at rest can be safely ignored without notably affecting the fluid flow behavior. To identify these particles, a novel sleepy strategy is introduced. By utilizing this strategy, only a portion of the fluid particles requires computational resources; thus an obvious performance gain can be achieved. In addition, in order to resolve unphysical clumping issue due to tensile instability in SPH based methods, a new artificial repulsive force is provided. We demonstrate that our approach can be easily integrated with existing SPH based methods to improve the efficiency without sacrificing visual quality.