Direct Numerical Simulation of Turbulent Couette Flow. Part 2

Abstract

A direct simulation of fully developed turbulent channel flow has been performed, through a direct solution of the time-varying, incompressible, Navier-Stokes equations. Reynolds shear stress appears to mark structures that are similar to those marked by hydrogen bubbles in the near-wall region of wall bounded shear flows. This has been observed by others, but not from animated views that match closely the physical experiments. Three-dimensional views of the Reynolds shear stress reveal elongated structures in the near-wall region that do not appear to be connected at larger normal distances. Keywords: Projectiles, Base flow, Turbulence, Simulation.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1990
Accession Number
ADA226770

Entities

People

  • John D. Kuzan
  • Phillip C. Dykstra

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Base Flow
  • Couette Flow
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Fluid Flow
  • Hydrogen
  • Kinetic Energy
  • Mechanical Engineering
  • Mechanical Properties
  • Mechanics
  • Shear Flow
  • Shear Stresses
  • Simulations
  • Stresses
  • Three Dimensional
  • Turbulence

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.