Accession Number : AD0739222

Title :   An Approximate Method for Calculating the Minimum Suction Rate That Excludes Separation for the Boundary Layer of a Semi-Bounded Stream,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Mkhitaryan,A. M. ; Girol,A. P.

Report Date : 17 DEC 1971

Pagination or Media Count : 12

Abstract : The article discusses development of a method of calculating the lowest suction rate that would prevent laminar boundary layer separation from a curvilinear porous surface situated in a jet flow expelled from a thin slot into a slipstream. The method is based on the use of a dimensionless momentum equation for the boundary layer and of a velocity profile in the form of a fourth order polynomial. The maximum velocity at the interface between the boundary layer and the main flow is determined from an integral momentum relation for the main flow.

Descriptors :   (*LAMINAR BOUNDARY LAYER, *AREA SUCTION), CURVED PROFILES, POROUS MATERIALS, SURFACE PROPERTIES, JET MIXING FLOW, EQUATIONS OF MOTION, VELOCITY, APPROXIMATION(MATHEMATICS), USSR

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE