A Boundary Layer Model for Unbounded Flow Along a Wall

Abstract

The current boundary layer model used in describing flow along a wall is found to be incomplete in that it only describes the flow found in a wind tunnel. The important attribute of the wind tunnel case is that the velocity above the wall asymptotes to a constant value that is different than the free stream inlet velocity. In contrast, for flows along an airfoil, the velocity above the airfoil surface must eventually return to the free stream inlet flow velocity value. Hence, a new boundary layer model is required for this case. Herein, we define a new region above the viscous layer as the inertial boundary layer region. New thickness and shape parameters are defined and similarity solutions are proposed

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2020
Accession Number
AD1091170

Entities

People

  • David Weyburne

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Boundaries
  • Boundary Layer
  • Boundary Layer Flow
  • Differential Equations
  • Equations
  • Flow
  • Fluid Flow
  • Free Stream
  • Laminar Flow
  • Layers
  • Partial Differential Equations
  • Pressure Gradients
  • Probability Density Functions
  • Two Dimensional
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.