A Boundary Condition Capturing Method for Multiphase Incompressible Flow

  • Authors:

  • Myungjoo Kang;Ronald P. Fedkiw;Xu-Dong Liu

  • Affiliations:

  • Department of Mathematics, University of California Los Angeles, Los Angeles, California 90095;Computer Science Department, Stanford University, Stanford, California 94305;Department of Mathematics, University of California Santa Barbara, Santa Barbara, California 93106

  • Venue:
  • Journal of Scientific Computing
  • Year:
  • 2000

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Abstract

In [6], the Ghost Fluid Method (GFM) was developed to capture the boundary conditions at a contact discontinuity in the inviscid compressible Euler equations. In [11], related techniques were used to develop a boundary condition capturing approach for the variable coefficient Poisson equation on domains with an embedded interface. In this paper, these new numerical techniques are extended to treat multiphase incompressible flow including the effects of viscosity, surface tension and gravity. While the most notable finite difference techniques for multiphase incompressible flow involve numerical smearing of the equations near the interface, see, e.g., [19, 17, 1], this new approach treats the interface in a sharp fashion.