Numerical Simulation of Stalling Flows by an Integral Equation Method,

Abstract

An integral equation method is presented for solution of the Navier Stokes equations for stalling aerofoil, cascade or bluff body flows. Vorticity created at the aerofoil or body surface at each time step of a numerical procedure, is diffused into the mainstream and convected by the local velocity vector. Viscous diffusion is simulated by a model skin to Brownian motion whereby all shed vorticity elements are given random displacements at each time step. Solutions are shown for boundary layers, bluff bodies, aerofoils and a first attempt at a cascade. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1983
Accession Number
ADP003080

Entities

People

  • D. T. C. Porthouse
  • R. I. Lewis

Tags

DTIC Thesaurus Topics

  • Airfoils
  • Boundaries
  • Boundary Layer
  • Brownian Motion
  • Diffusion
  • Displacement
  • Equations
  • Integral Equations
  • Integrals
  • Layers
  • Mathematics
  • Navier Stokes Equations
  • Simulations
  • Stalling

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Mathematical Modeling and Probability Theory.