Accession Number:
AD0672574
Title:
ON A GENERAL SIMILARITY ANALYSIS FOR TURBULENT JET AND WAKE FLOWS,
Descriptive Note:
Corporate Author:
IOWA UNIV IOWA CITY INST OF HYDRAULIC RESEARCH
Personal Author(s):
Report Date:
1967-12-01
Pagination or Media Count:
50.0
Abstract:
The development of any inhomogeneous free-turbulence flow in an incompressible fluid is predicted through the use of a general self-preservation hypothesis. The analytical solutions are verified by comparison with experimental data on mean-flow and turbulence characteristics of plane and axisymmetric jets in coaxial parallel flow with and without confinement, of an axisymmetric jet in a cross flow, and of the wake behind a self-propelled body. Emphasis is placed on the distinct turbulence structure of the various flows as revealed by the different axial variations of a shear parameter relating turbulence shear to mean velocity. The satisfactory predictions obtained by the new approach make it appear to have a more general application e.g., to plumes and wall jets than the examples chosen might imply. Author
Descriptors:
Subject Categories:
- Aerodynamics
- Fluid Mechanics