Review of Vortex Methods for Simulation of Vortex Breakdown

Abstract

The aim of this work is to identify current developments in the field of vortex breakdown modelling in order to initiate the development of a numerical model for the simulation of F/A-18 empennage buffet. Some attempts at using vortex models for prediction of vortex breakdown were found in the open literature. Their advantages and shortcomings are discussed, allowing the evaluation of their feasibility for the computation of LEX vortex burst. It was concluded that vortex methods are able to simulate an onset of breakdown in simple vortical flows. However, their predictive abilities require further improvement to provide accurate modelling of the temporal and spatial characteristics of the unsteady pressure field past a burst LEX vortex.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2001
Accession Number
ADA396691

Entities

People

  • Oleg Levinski

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aeroelasticity
  • Aircrafts
  • Airframes
  • Computational Fluid Dynamics
  • Computations
  • Delta Wings
  • Dynamics
  • Equations
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Leading Edges
  • Numerical Analysis
  • Physics Laboratories
  • Pressure Distribution
  • Simulations

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Computational Modeling and Simulation
  • Fluid Mechanics and Fluid Dynamics.