Accession Number : ADA014731

Title :   Turbulent Boundary Layer Characteristics at High Reynolds Number.

Descriptive Note : Final rept. 1 Sep 72-31 May 74,

Corporate Author : NEW YORK UNIV WESTBURY AEROSPACE AND ENERGETICS LAB

Personal Author(s) : Zakkay,Victor

Report Date : JUN 1975

Pagination or Media Count : 53

Abstract : The pressure gradient effect on the characteristics of a compressible turbulent boundary layer in separation and reattachment regions of laminar and turbulent flows have been investigated. Experiments were conducted at a large variation of Mach numbers and free stream Reynolds numbers. Favorable pressure gradient was found to have significant effect on the correlation of the total temperature and velocity profiles in turbulent boundary layer. Correlations for the separation distance, peak heating values, and peak surface pressure were found. Methods are described to predict the location and peak heating values in a separated flow region.

Descriptors :   *Turbulent boundary layer, *Compressible flow, *Flow separation, Supersonic characteristics, Reynolds number, Variations, Pressure gradients, Attachment, Heating, Correlation techniques, Surface properties, Pressure, Shock waves, Mathematical prediction, Laminar flow, Interactions

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE