“Fluid simulation without pressure” by Choi, Jeon, Yoon and Ko

  • ©Wanho Choi, In-Yong Jeon, Jong-Chul Yoon, and Hyeong-Seok Ko




    Fluid simulation without pressure



    We suggests a new framework for enforcing the divergence-free condition on a velocity field. In this framework, the incompressibility is achieved by summing all the other nodal vorticities rather than via solving the Poisson equation. Our method is very simple to implement in both two and three dimensions and able to substitute for the conventional pressure projection step of the fluid simulation. In contrast with the pressure projection step, the proposed method can be efficiently parallelizable on multi-core or GPU architectures.


    1. Park, S. I., and Kim, M. J. 2005. Vortex fluid for gaseous phenomena. In Proc. ACM SIGGRAPH/Eurographics Symp. on Comp. Anim., 261–270.
    2. Greengard, L., and Rokhlin, V. 1987. A fast algorithm for particle simulation. J. Comp. Phys. 73, 325–348.

ACM Digital Library Publication:

Overview Page: