Nonlinear Problens in Flight Dynamics Involving Aerodynamic Bifurcations,

Abstract

Aerodynamic bifurcation is defined as the replacement of an unstable equilibrium flow by a new stable equilibrium flow at a critical value of a parameter. A mathematical model of the aerodynamic contribution to the aircraft's equations of motion is amended to accommodate aerodynamic bifurcations. Important bifurcations such as, for example, the onset of large-scale vortex-shedding are defined. The amended mathematical model is capable of incorporating various forms of aerodynamic responses, including those associated with dynamic stall of airfoils.

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1985
Accession Number
ADP005028

Entities

People

  • Gary T. Chapman
  • Murray Tobak

Organizations

  • Ames Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamics
  • Computational Science
  • Dynamics
  • Equations
  • Equations Of Motion
  • Flow
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Mathematical Models
  • Mechanics
  • Models
  • Unsteady Aerodynamics
  • Vortex Shedding

Fields of Study

  • Mathematics

Readers

  • Computational Modeling and Simulation
  • Environmental Impact Assessment (EIA) of Proposed Air Force Base Actions.
  • Fluid Mechanics and Fluid Dynamics.