INTRODUCTION TO THREE-DIMENSIONAL BOUNDARY LAYERS

Abstract

The basic concept of a three-dimensional boundary layer is reviewed from both physical and mathematical viewpoints. Emphasis is placed on the various causes of secondary flow, particularly geodesic curvature of the surface streamlines of inviscid flow. Various exact solutions for steady, incompressible laminar flow are reexamined, a proposal for a finite-difference scheme for arbitrary inviscid flows and surface conditions is sketched, and the momentum-integral method and other approximation schemes are briefly discussed. Also considered are compressibility effects, laminar-flow stability, transition to turbulence, displacement thickness of a three-dimensional boundary layer, and the incompressible turbulent boundary layer. It is concluded that very successful three-parameter models of mean velocity profiles exist, but methods for predicting the variation of the profile parameters are essentially deficient.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1968
Accession Number
AD0668753

Entities

People

  • Frederick S. Sherman

Organizations

  • RAND Corporation

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Boundary Layer
  • Boundary Layer Flow
  • Computational Fluid Dynamics
  • Computational Science
  • Fluid Dynamics
  • Fluid Mechanics
  • Hydrodynamics
  • Inviscid Flow
  • Mechanical Properties
  • Mechanics
  • Secondary Flow
  • Stratified Fluids
  • Three Dimensional
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Systems Analysis and Design