Accelerated Viscous Fluid Simulation Using Position-Based Constraints

被引:2
作者
Takahashi, Tetsuya [1 ]
Fujishiro, Issei [1 ]
机构
[1] Keio Univ, Tokyo 108, Japan
来源
2013 INTERNATIONAL CONFERENCE ON COMPUTER-AIDED DESIGN AND COMPUTER GRAPHICS (CAD/GRAPHICS) | 2013年
关键词
Fluid simulation; viscous fluids; position-based dynamics; geometric constraints;
D O I
10.1109/CADGraphics.2013.41
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
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.
引用
收藏
页码:260 / 267
页数:8
相关论文
共 40 条
  • [1] Versatile Rigid-Fluid Coupling for Incompressible SPH
    Akinci, Nadir
    Ihmsen, Markus
    Akinci, Gizem
    Solenthaler, Barbara
    Teschner, Matthias
    [J]. ACM TRANSACTIONS ON GRAPHICS, 2012, 31 (04):
  • [2] Highly Adaptive Liquid Simulations on Tetrahedral Meshes
    Ando, Ryoichi
    Thuerey, Nils
    Wojtan, Chris
    [J]. ACM TRANSACTIONS ON GRAPHICS, 2013, 32 (04):
  • [3] [Anonymous], 2004, COMPUTER ANIMATION 2, DOI DOI 10.1145/1028523.1028549
  • [4] Bailey RC, 2006, GEOPHYS J INT, V164, P460, DOI [10.1111/j.1365-246X.2005.02788.x, 10.1111/j.1365-246X.2005.027H8.x]
  • [5] A finite element method for animating large viscoplastic flow
    Bargteil, Adam W.
    Wojtan, Chris
    Hodgins, Jessica K.
    Turk, Greg
    [J]. ACM TRANSACTIONS ON GRAPHICS, 2007, 26 (03):
  • [6] Batty C., 2011, Proc 2011 ACM SIGGRAPH/Eurograp Symp Comp Anim, P111
  • [7] Batty C., 2008, S COMP AN, P219
  • [8] Discrete Viscous Sheets
    Batty, Christopher
    Uribe, Andres
    Audoly, Basile
    Grinspun, Eitan
    [J]. ACM TRANSACTIONS ON GRAPHICS, 2012, 31 (04):
  • [9] Becker M, 2007, SYMPOSIUM ON COMPUTER ANIMATION 2007: ACM SIGGRAPH/ EUROGRAPHICS SYMPOSIUM PROCEEDINGS, P209
  • [10] Bender J., 2013, EUROGRAPHICS 2013 State of the Art Reports