Accession Number : AD0802727

Title :   HYPERSONIC VISCOUS INTERACTION THEORY FOR WEDGE WINGS.

Descriptive Note : Rept. for 1 Mar-30 Jun 66,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA LAB OPERATIONS

Personal Author(s) : Mirels, Harold ; Lewellen, William S.

Report Date : AUG 1966

Pagination or Media Count : 39

Abstract : The aerodynamic characteristics of wedge wings having either a delta or a two-dimensional planform are determined for hypersonic viscous flow. It is assumed that the wing is at a small angle of attack, that the shock is strong, and that the ratio of specific heats is near 1. Under these assumptions pressure and shear distributions, obtained from Cheng's interaction theory, are integrated over the surface using two-dimensional strip theory to obtain the lift, drag, lift to drag ratio, and center of pressure. A single table of numerical results which define the aerodynamic characteristics in the strong, moderate, and weak interaction regimes is obtained. Analytical expressions are obtained for the limiting cases of strong and weak interaction. Figures are presented which show the reduction in maximum obtainable lift to drag ratio for a given wing as the viscous interaction parameter increases. (Author)

Descriptors :   *DELTA WINGS), (*AERODYNAMIC CHARACTERISTICS, AERODYNAMIC CONFIGURATIONS, HYPERSONIC FLOW, TWO DIMENSIONAL FLOW, LIFT, DRAG, WEDGES, ANGLE OF ATTACK, COMPRESSIVE PROPERTIES, PRESSURE, LAMINAR FLOW, NUMERICAL ANALYSIS, PARTIAL DIFFERENTIAL EQUATIONS, REYNOLDS NUMBER, FLAT PLATE MODELS, HEAT TRANSFER, BOUNDARY LAYER, EXPERIMENTAL DATA.

Subject Categories : Fluid Mechanics
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Distribution Statement : APPROVED FOR PUBLIC RELEASE