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 twopoint 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.
 Publication:

Final Technical Report
 Pub Date:
 February 1981
 Bibcode:
 1981ara..reptQ....S
 Keywords:

 Flow Velocity;
 Homogeneous Turbulence;
 Mathematical Models;
 Shear Flow;
 Stress Tensors;
 Turbulent Flow;
 Annular Flow;
 Autocorrelation;
 Isotropic Turbulence;
 Pipes (Tubes);
 Reynolds Number;
 Velocity Distribution;
 Wind Tunnel Tests;
 Fluid Mechanics and Heat Transfer