A Study of Aerodynamic Control in Stalled Flight Long Laminar Separation Bubble Analysis.

Abstract

This report describes an analysis method for laminar separation bubbles (long or short) on two-dimensional airfoil sections at incidence. A viscous/potential flow iterative procedure was chosen due to its simple and efficient nature. The boundary layer procedure is a finite-difference method, sometimes referred to as the 'Bosx Scheme', and uses the Cebeci-Smith two-layer, eddy viscosity model for turbulence closure. The potential flow calculation in such a way that it gives constant pressure along the surface inside the bubble, The coupled calculation procedure has been applied to the NACA 64A006 airfoil and satisfactory results have been obtained. Keywords: Panel methods; and Laminar separation bubble.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1985
Accession Number
ADA153850

Entities

People

  • D. H. Choi
  • F. A. Dvorak

Tags

Communities of Interest

  • C4I
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boundary Layer
  • Boundary Layer Transition
  • Classification
  • Coordinate Systems
  • Equations
  • Flow
  • Fluid Mechanics
  • Iterations
  • Potential Flow
  • Pressure Distribution
  • Pressure Gradients
  • Trailing Edges
  • Transitions
  • Turbulent Boundary Layer
  • Turbulent Flow
  • Two Dimensional
  • Viscosity

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.
  • Underwater engineering and Marine Technology.