A Model of the Structure of Homogeneous Turbulence.

Abstract

We propose to generalize well-known transport equations for turbulent flows so that they are assumed to apply to two-point correlation functions. We use analogy with their one-point counterparts to which they are required to reduce as the separation of the two points is made to vanish. In order to illustrate the development of this program, we concentrate in this report on homogeneous turbulence at high Reynolds numbers so that the two one-point models needed are the dissipation model and the redistribution model. Both models have been used successfully for such a long time that it is difficult to assign rigidly their originators. They have acquired special importance in the recent developments of turbulent transport calculations.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1980
Accession Number
ADA094431

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Atmospheric Motion
  • Boltzmann Equation
  • Computational Fluid Dynamics
  • Computational Science
  • Coordinate Systems
  • Differential Equations
  • Energy
  • Equations
  • Flow
  • Grids
  • Navier Stokes Equations
  • Numerical Integration
  • Shear Flow
  • Temperature Gradients
  • Turbulence
  • Turbulent Flow

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Fluid Dynamics.