Axisymmetric Vortex Breakdown. Part 1. Confined Swirling Flow.

Abstract

A comparison between the experimental visualization and numerical simulations of the occurrence of vortex breakdown in laminar swirling flows produced by a rotating endwall is presented. The experimental visualizations of Escudier were the first to detect the presence of multiple recirculation zones and the numerical model presented here, consisting of a numerical solution of the unsteady axisymmetric Navier Stokes equations, faithfully reproduces these newly observed phenomena and all other observed characteristics of the flow. Part II of the paper examines the underlying physics of these vortex flows.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1988
Accession Number
ADA212440

Entities

People

  • J. M. Lopez

Tags

Communities of Interest

  • Air Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aeronautical Engineering
  • Angular Momentum
  • Boundary Layer
  • Convection
  • Differential Equations
  • Eddies (Fluid Mechanics)
  • Engineering
  • Equations
  • Flow
  • Flow Visualization
  • Mechanical Engineering
  • Navier Stokes Equations
  • Stagnation Point
  • Standing Waves
  • Steady State
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.