NDLI: Accelerated Viscous Fluid Simulation Using Position-Based Constraints

Content Provider	IEEE Xplore Digital Library
Author	Takahashi, T. Fujishiro, I.
Copyright Year	2013
Description	Author affiliation: Keio Univ., Yokohama, Japan (Takahashi, T.; Fujishiro, I.)
Abstract	The most prevalent approach to simulating viscous fluids is based on the Navier-Stokes equations, and has extensively been adopted in computer graphics for the past two decades. When employing an explicit viscosity integration, however, time step size for numerically stable simulation is likely to be limited and necessitate an exceedingly long period of time for computation. In this paper, we present a novel particle-based method for efficiently simulating viscous fluids using position-based constraints. Our method utilizes the geometric configuration of particles for the positional constraints in the position-based dynamics, and thus can generate visually-plausible behavior of viscous fluids, while allowing for the use of much larger time steps than the ones previously adopted in the viscous fluid simulations. An associated boundary handling scheme for the position-based fluids is also proposed to properly address constraints for density and viscosity distributions on boundaries. In addition, by adjusting parameters of particles, our method can produce complicated dynamics of threads, sheets, and volumes of different viscosity values in a unified framework. Several examples demonstrate the efficiency as well as robustness and versatility of our approach.
Starting Page	260
Ending Page	267
File Size	664278
Page Count	8
File Format	PDF
ISBN	9781479925766
DOI	10.1109/CADGraphics.2013.41
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-11-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Viscosity geometric constraints Computational modeling viscous fluids Computer graphics Fluid simulation position-based dynamics Numerical models Mathematical model Navier-Stokes equations
Content Type	Text
Resource Type	Article

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