Accession Number : ADA136257
Title : Unsteady Boundary Layers on Thin Bodies of Revolution.
Descriptive Note : Technical rept.,
Corporate Author : MCDONNELL DOUGLAS CORP LONG BEACH CA
Personal Author(s) : Cebeci,T ; Stewartson,K ; Schimke,S M
PDF Url : ADA136257
Report Date : Aug 1983
Pagination or Media Count : 38
Abstract : The evolution of unsteady boundary layers on the line of symmetry of a thin prolate spheroid in uniform motion at constant angle of attack after an impulsive start is studied for a prescribed pressure distribution and results have been obtained for angles of attack ranging from 30 degrees to 50 degrees. The unsteady boundary layer is initially unseparated but develops a region of reversed flow after a finite time. A short time later, the streamwise displacement thickness develops a pronounced peak and leads to a singularity of the same type as that observed by van Dommelen and Shen on a circular cylinder started impulsively from rest.
Descriptors : *Boundary layer, *Unsteady flow, Flow separation, Bodies of revolution, Angle of attack, Airfoils
Subject Categories : Fluid Mechanics
Distribution Statement : APPROVED FOR PUBLIC RELEASE