Accession Number : AD0434977

Title :   ON THE INFLUENCE OF VORTICITY OF EXTERNAL FLOW AND CURVATURE OF BODY ON FLOW IN BOUNDARY LAYER,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Petukhov,I. V. ; Ankudinov,A. L.

Report Date : 14 JAN 1964

Pagination or Media Count : 15

Abstract : A flow in a laminary boundary layer can be presented as the superposition of two flows: main and secondary. The secondary flow is stipulated by influence of such factors, as the curvature of the body surface and vorticity of the external, nonviscous flow. Calculation of influence of these factors reduces to the determination of a small correction of the main solution. Below is given the strict statement of boundary conditions for secondary flows in a boundary layer. The approach to the corresponding problem is based on method of accurate joining of viscous and nonviscous flows, applied in an examination of the main flow. Thus, an external nonviscous flow and the surface of the body it flows around (surface of displacement) are considered to be given, at the time when changes in the form of body, caused by the presence of a viscous near-wall layer, are not known. For the case corresponding to the flowing around of plate by a oblique flow, results are given of calculation of correction to solution of Blasius, caused by the vorticity of external flow. (Author)

Descriptors :   (*LAMINAR BOUNDARY LAYER, VORTICES), BODIES OF REVOLUTION, AERODYNAMIC CONFIGURATIONS, FLUID FLOW, VISCOSITY, GAS FLOW, THEORY, PARTIAL DIFFERENTIAL EQUATIONS, MATHEMATICAL ANALYSIS, CONVEX BODIES

Distribution Statement : APPROVED FOR PUBLIC RELEASE