THE EFFECT OF NON-UNIFORM WALL TEMPERATURES ON SKIN FRICTION AND HEAT TRANSFER IN LAMINAR COMPRESSIBLE BOUNDARY LAYERS.

Abstract

The results obtained from exact numerical solutions to the laminar boundary layer equations are compared with those given by the approximate method of Luxton and Young and the comparison shows that the latter method may be used for cases involving non-constant wall temperatures. This satisfactory result arises essentially from the fact demonstrated by the calculations that the skin friction is relatively insensitive to wall temperature gradients. It is also shown from these results that there is a lag in the propagation of wall temperature changes through the boundary layer. In consequence the Stanton number is a heat transfer parameter of doubtful value in cases of non-uniform wall temperature. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 05, 1967
Accession Number
AD0670299

Entities

People

  • T. Hughes

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Climate Change
  • Equations
  • Friction
  • Heat Transfer
  • Laminar Boundary Layer
  • Layers
  • Skin Friction
  • Temperature Gradients

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.