The Prediction of the Bursting of Laminar Separation Bubbles in the Design of Two-Dimensional High-Lift Aerofoils.

Abstract

The structure of laminar separation bubbles is described and methods of predicting the bursting of these bubbles on the slat of a high-lift wing are examined. In particular Horton's method is found to give a useful description of the growth and bursting of the bubble. A simple method of predicting the burst of short bubbles is developed by combining the Crabtree maximum pressure rise parameter with the assumption that the separated turbulent shear layer is an equilibrium flow. These methods will aid the design of wind-tunnel models and form one of the building blocks for the calculation of the viscous flow about high-lift wings. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1980
Accession Number
ADA091624

Entities

People

  • B. R. Williams

Organizations

  • Royal Aircraft Establishment

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boundary Layer
  • Equations
  • Flow
  • High Lift
  • Laminar Boundary Layer
  • Leading Edges
  • Plastic Explosives
  • Pressure Distribution
  • Pressure Gradients
  • Reynolds Number
  • Trailing Edges
  • Turbulent Mixing
  • Two Dimensional
  • Viscous Flow
  • Wind Tunnel Models
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Fluid Mechanics and Fluid Dynamics.
  • Systems Analysis and Design