Fundamental Research in Turbulent Modeling, Part 1. Theory. Part 2. Experiment.

Abstract

We develop a model of turbulent flows deduced from simple assumptions on the two-point tensor Rij whose first approximation consists in coupled equations for the Reynolds and scale tensors. The model, when specialized to homogeneous turbulence, contains two adjustable parameters with which we match the main features of both grid and sheared turbulence. The calculated integral scales for sheared turbulence are strongly directional. Thus the model allows one to compute, for the first time, a first approximation to the eddy structure in a sheared turbulent flow. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1981
Accession Number
ADA097431

Entities

People

  • Carmen Cerasoli
  • Guido Sandri

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Atmospheric Motion
  • Boundary Layer
  • Computational Fluid Dynamics
  • Equations
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Measurement
  • Mechanical Properties
  • Orientation (Direction)
  • Reynolds Number
  • Shear Stresses
  • Stratified Fluids
  • Turbulence
  • Turbulent Flow
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Computational Modeling and Simulation
  • Fluid Dynamics.