A Cartesian Adaptive Level Set Method for Two-Phase Flows

Abstract

Simulations of flows involving free surfaces have become ubiquitous in the literature. The evolution of both simulation methods and computer speed have allowed the investigation of many problems of increasing complexity and engineering relevance. For 2D simulations, it is reasonably common to use grid resolutions of 512 x 512 or larger. See for example the 2D planar breaking wave simulations of Chen et al. (1999), or the axisymmetric drop breakup simulations of Han and TryggvasonCorp Source (1999a, 1999b). Many such free surface problems are fundamentally three dimensional and the absence of three-dimensional effects such as the pinch-off of stretched filaments by surface tension makes it difficult to make valid physical conclusions or use 2D results to develop models. Achieving similar grid resolution in 3D, however, is outside the computational reach of most research centers.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2003
Accession Number
ADP014806

Entities

People

  • F. Ham
  • Y. N. Young

Organizations

  • Stanford University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Continuity
  • Equations
  • Flow
  • Free Stream
  • Instability
  • Momentum
  • Multiphase Flow
  • Oscillation
  • Poisson Equation
  • Pressure Gradients
  • Rayleigh Taylor Instability
  • Simulations
  • Stratified Fluids
  • Surface Tension
  • Three Dimensional
  • Two Dimensional
  • Two Phase Flow

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Computational Fluid Dynamics (CFD)