Accession Number : AD0703128

Title :   A NOTE ON SPATIALLY GROWING THREE-DIMENSIONAL DISTURBANCES IN A FREE SHEAR LAYER,

Corporate Author : DEUTSCHE FORSCHUNGS- UND VERSUCHSANSTALT FUER LUFT- UND RAUMFAHRT E V BERLIN (WEST GERMANY)

Personal Author(s) : Michalke,A.

Report Date : 1969

Pagination or Media Count : 4

Abstract : It does not seem to be possible to prove analytically that an incompressible, inviscid free shear layer is less unstable with respect to spatially growing three-dimensional disturbances than to two-dimensional ones. For this reason a numerical calculation for the special case of the hyperbolic tangent velocity profile was performed. It was found that even for spatially growing disturbances the amplification of three-dimensional disturbances is smaller than for two-dimensional ones. (Author)

Descriptors :   (*INCOMPRESSIBLE FLOW, SHEAR STRESSES), (*THREE DIMENSIONAL FLOW, STABILITY), TWO DIMENSIONAL FLOW, NUMERICAL ANALYSIS, WEST GERMANY

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE