AN APPROXIMATE METHOD FOR THE CALCULATION OF THE REYNOLDS ANALOGY FACTOR FOR A COMPRESSIBLE TURBULENT BOUNDARY LAYER IN A PRESSURE GRADIENT.

Abstract

The method predicts that a positive pressure gradient increases and a negative pressure gradient decreases the ratio of Stanton number to friction coefficient. The Crocco relation between the velocity and total enthalpy for a non-adiabatic surface and zero pressure gradient is generalized to non-zero pressure gradient. The relation between the velocity and the total enthalpy varies markedly from the flat plate Crocco relation as the pressure gradient departs from zero. The magnitude of the variation depends on the velocity profile shape parameter. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 08, 1967
Accession Number
AD0832711

Entities

People

  • Neal Tetervin

Organizations

  • Naval Ordnance Laboratory

Tags

DTIC Thesaurus Topics

  • Barometric Pressure
  • Biological Phenomena
  • Boundaries
  • Boundary Layer
  • Coefficients
  • Ecological And Environmental Phenomena
  • Ecological And Environmental Processes
  • Enthalpy
  • Friction
  • Layers
  • Pressure Gradients
  • Turbulent Boundary Layer

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.