Surface Tension and Viscosity with Lagrangian Hydrodynamics on a Triangular Mesh.

Abstract

Numerical algorithms for surface tension and viscosity are presented in the context of a Lagrangian treatment of incompressible hydrodynamics with a dynamically restructuring grid. New algorithms are given which update previous Lagrangian approaches in the code SPLISH. Test problems involving internal gravity and capillary waves, an oscillating droplet and a viscous shear layer are described. An example is given of a flow calculated in and around a viscous droplet with surface tension in a shear flow. Keywords: SPLISH computer program; Internal gravity waves; Two-phase flow; Incompressible flows; Viscous flows.

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Document Details

Document Type
Technical Report
Publication Date
Mar 18, 1988
Accession Number
ADA194120

Entities

People

  • David E. Fyfe
  • Elaine Oran
  • M. J. Fritts

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Capillary Waves
  • Computer Programs
  • Convection
  • Couette Flow
  • Equations
  • Fluid Dynamics
  • Fluid Flow
  • Gravity Waves
  • Hydrodynamics
  • Incompressible Flow
  • Materials
  • Shape
  • Shear Flow
  • Turbulent Mixing
  • Two Dimensional
  • Viscous Flow

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Fluid Dynamics.