A NEW MIXING LENGTH THEORY FOR TURBULENT FLOWS IN DYNAMIC EQUILIBRIUM.

Abstract

A self-contained mixing length theory for turbulent flows in dynamic equilibrium is arrived at. The theory predicts a priori the existence of the laminar sublayer and, when account of viscous dissipation effects near the wall is taken, agrees well with detailed experimental data for both mean and fluctuating quantities without the need for ad hoc fitting constants. The theory leads to the result that the wall friction coefficient may be made independent of Reynolds number of employing the proper normalizing velocity and, using this information, the calculation of wall friction or of pressure drop for a given mean flow velocity is possible. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1967
Accession Number
AD0814884

Entities

People

  • W. H. Webb

Organizations

  • TRW Inc.

Tags

DTIC Thesaurus Topics

  • Coefficients
  • Dissipation
  • Experimental Data
  • Flow
  • Fluid Dynamics
  • Fluid Flow
  • Friction
  • Reynolds Number
  • Turbulent Flow

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Fluid Dynamics.