
Accession Number : AD0637679
Title : A METHOD OF SOLVING THE THREEDIMENSIONAL LAMINAR BOUNDARYLAYER EQUATIONS WITH APPLICATION TO A LIFTING REENTRY BODY.
Descriptive Note : Research memo.
Corporate Author : BRUSSELS UNIV (BELGIUM) LAB OF PATHOPHYSIOLOGY OF THE NERVOUS SYSTEM
Personal Author(s) : Fannelop,Torstein K.
Report Date : 09 AUG 1966
Pagination or Media Count : 165
Abstract : The general threedimensional laminar compressible boundarylayer equations, written in terms of streamline coordinates, are reduced to a sequence of twodimensional equations by means of a systematic perturbation procedure. The perturbation parameter is related to the inviscid streamline curvature and the lowest (zerothorder) equations are identical with the small crossflow equations of Hayes. In addition, the equations for the firstorder terms are given explicitly both in terms of physical and transformed (LeesLevy) variables. Two alternate finite difference methods (for physical and transformed variables respectively) are developed to solve the zeroth as well as the firstorder equations exactly. Local similarity methods are also considered for comparison. A variety of boundary conditions are possible including the case for which the heat and masstransfer rates are coupled through an energy balance. The methods were applied to the problem of boundarylayer flow on a blunted cone at angleofattack. The results show that the crossflow often becomes rather large near the wall. The firstorder corrections to the enthalpy and tangential velocity in the boundary layer are nevertheless small. (Author)
Descriptors : (*LAMINAR BOUNDARY LAYER, EQUATIONS), (*REENTRY VEHICLES, LIFT), THREE DIMENSIONAL FLOW, DIFFERENCE EQUATIONS, PERTURBATION THEORY, THERMODYNAMICS, BLUNT BODIES, CONICAL BODIES
Subject Categories : Fluid Mechanics
Spacecraft Trajectories and Reentry
Ground Support Sys & Facil For Space Vehicles
Distribution Statement : APPROVED FOR PUBLIC RELEASE