A SIMPLIFIED APPROACH TO THE INFLUENCE OF GORTLER-TYPE VORTICES ON THE HEAT TRANSFER FROM A WALL.

Abstract

A restricted exploratory investigation was made to examine the plausibility of finding that Gortler-type vortices may explain the increased heat transfer found in many instances in which conventional explanations have failed. Because of the complexity of the analytical setting, the current treatment was put within reach of solution by restriction of the Prandtl number to high and low values, so that the energy and momentum equations may be decoupled. It is indeed found that these vortices effect increases in heat transfer and that a part of the mechanism is a tendency of the vortices to slow down the velocity in the fluid at an increased rate (as compared with the case without these vortices) in the region where they bring the fluid away from the wall and to increase it where the fluid is brought down. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1965
Accession Number
AD0622151

Entities

People

  • Leif N. Persen

Tags

DTIC Thesaurus Topics

  • Energy
  • Energy Transfer
  • Equations
  • Heat Transfer
  • Momentum
  • Physical Properties
  • Prandtl Number

Readers

  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.
  • Theoretical Analysis.