Level Set Advection of Free Fluid Surface Modified by Surface Tension

  • Pineda, Israel (Division of Computer Science & Engineering, Chonbuk National University) ;
  • Gwun, Oubong (Division of Computer Science & Engineering, Chonbuk National University)
  • Received : 2015.05.20
  • Accepted : 2015.06.27
  • Published : 2015.06.30

Abstract

Fluids appear in innumerable phenomena; therefore, it is interesting to reproduce those phenomena by computer graphics techniques. However, this process is not trivial. We work with a fluid simulation that uses Navier-Stokes equations to model the fluid, a semi-Lagrangian approach to solve it and the level set method to track the surface of the fluid. Modified versions of the Navier-Stokes equations for computer graphics allow us to create a wide diversity of effects. In this paper, we propose a technique that allows us to integrate a force inspired by surface tension into the model. We describe which information we need and how to modify the model with this new approach. We end up with a modified simulation that has additional effects that might be suitable for computer graphics purposes. The effects that we are able to recreate are small waves and droplet-like formations close to the surface of the fluid. This model preserves the overall behavior governed by the Navier-Stokes equations.

Keywords

References

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