Transient Free-Surface Hydrodynamics.

Abstract

The control volume approach is used to obtain a finite-difference scheme for a Lagrangian formulation of inviscid incompressible flow using an irregular triangular mesh. The method permits grid reconnections and allows local vertex addition and deletion. Algorithms are presented which conserve divergence vorticity, mass, momentum and energy even during grid restructuring. Examples are taken from simulations of shear flow and flow over a hydrofoil in which the restructuring algorithms are crucial. Although the structure of the code is highly scalar, techniques are outlined for producing efficient code even for the new vector computers. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1977
Accession Number
ADA048749

Entities

People

  • M. J. Fritts

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Energy
  • Equations
  • Flow
  • Fluid Dynamics
  • Fluid Flow
  • Hydrodynamics
  • Hydrofoils
  • Incompressible Flow
  • Military Research
  • Poisson Equation
  • Pressure Gradients
  • Shear Flow
  • Simulations
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

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