Computations of Incompressible Turbulent Boundary Layers on Rough Surfaces.

Abstract

The extended mixing length formulation for the computation of incompressible turbulent boundary layers has been applied with success to flows over rough surfaces. The roughness effect is introduced into the computation scheme through the boundary conditions by defining a slip velocity at the surface. The method predicts the mean velocity and the turbulent shear stress distributions accurately except for a region near the wall where the flow is influenced locally by the roughness element. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1971
Accession Number
AD0727344

Entities

People

  • Y. Y. Chan

Organizations

  • National Research Council Canada

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Computations
  • Layers
  • Physical Properties
  • Roughness
  • Shear Stresses
  • Turbulent Boundary Layer

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.