Accession Number:

ADA179496

Title:

Unsteady Shear Layers.

Descriptive Note:

Final rept. 1 Apr 82-31 Mar 85,

Corporate Author:

UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES SCHOOL OF ENGINEERING

Report Date:

1985-10-29

Pagination or Media Count:

35.0

Abstract:

An elliptic nozzle was found effective for entrainment in jets. It was found that the onset of the fine scale turbulence alters the characteristics of the vortex merging. These studies encompassed plane jets, plunging airfoils, elliptic jets with mass entrainment and impinging jets. Additionally, the 3-D vortical flow over a backward facing step was investigated. A second aspect of the project focused on the emulation of turbulent wall eddy structures, bursting processes and associated turbulent spots. These studies were expanded to encompass the effects of unsteady flow on the turbulent wall structure. Keywords Boundary layers.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE