Turbulent length scales in nonequilibrium flows
Abstract
Turbulence models which relate the shear stress to other flow quantities and thus reduce the number of partial differential equations which must be solved, are widely used. Two of the most popular of these shear stress approximations are considered. Both are concerned with twodimensional flows. The discussion is restricted to the prediction of a group of selfsimilar free shear flows for which both equations are approximately valid, but which show significant variations from flow to flow in both the turbulence kinetic energy and the turbulence length scale.
 Publication:

Numerical Methods in Laminar and Turbulent Flow
 Pub Date:
 1978
 Bibcode:
 1978nmlt.proc..231B
 Keywords:

 Nonequilibrium Flow;
 Shear Stress;
 Turbulent Flow;
 Partial Differential Equations;
 Prandtl Number;
 Prediction Analysis Techniques;
 Reynolds Stress;
 Three Dimensional Flow;
 Turbulence Models;
 Turbulent Wakes;
 Two Dimensional Flow;
 Fluid Mechanics and Heat Transfer