Computational Studies of Vortex Breakdown

Abstract

Axisymmetric vortex breakdown was simulated numerically within an enclosed circular cylinder with: (1) fixed cylindrical wall-endwall and one rotating lid; and (2) rotating cylindrical wall-endwall with a differentially rotating lid. Variations of the two dynamical parameters permitted the calculation of cases in which incipient vortex breakdown was observed. A vortex breakdown criterion recently proposed by Brown & Lopez was tested against these numerical solutions.

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Document Details

Document Type
Technical Report
Publication Date
Jun 05, 1992
Accession Number
ADA253759

Entities

People

  • G. P. Neitzel
  • John P. Watson

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Angular Motion
  • Aspect Ratio
  • Axial Flow
  • Boundary Layer
  • Computational Fluid Dynamics
  • Delta Wings
  • Eddies (Fluid Mechanics)
  • Equations
  • Flow
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Navier Stokes Equations
  • Reynolds Number
  • Standing Waves
  • Steady State

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.