Studies of shear flows
Abstract
The objective of the work reported is construction of zonal models for accurate prediction of turbulent flows in rapidrunning computer programs. The work follows the ideas set down in the discussion of zonal modeling by S. J. Kline in Vol. 2 of the Proceedings of the 198081 AFOSRStanford Conference on Complex Turbulent Flows. This discussion noted that the fastrunning models available lack sufficient span to predict all classes of turbulent flows of engineering importance in a standard, invariant form. It therefore suggested that the models be treated as zonal. In the zonal approach, the constants in th models are adjusted for each important zone of the flow, where the word zone implies a region with a particular type of flow physics. In the proposal for the work, it was also noted that the parametrization of the flows and the selection of appropriate constants would ultimately need to be guided by the domain over which accurate results could be obtained, and that might well be different from preconceptions embodied in conventional taxonomies of the flows.
 Publication:

Stanford Univ. Report
 Pub Date:
 March 1986
 Bibcode:
 1986stan.reptT....K
 Keywords:

 Boundary Layer Flow;
 Computer Programs;
 Shear Flow;
 Turbulent Boundary Layer;
 Turbulent Jets;
 Boundary Layer Separation;
 Mathematical Models;
 Prediction Analysis Techniques;
 Separated Flow;
 Wakes;
 Fluid Mechanics and Heat Transfer