Accession Number : AD0779507

Title :   A Numerical Method for Boundary Layer Equations.

Descriptive Note : Technical rept.,


Personal Author(s) : Nilson,R. H. ; Tsuei,Y. G.

Report Date : MAR 1974

Pagination or Media Count : 72

Abstract : A general marching procedure for numerical solution of the two-dimensional boundary layer equations is presented. Although the present method traces its origin to that of Patankar and Spalding, major modifications have been undertaken. The method is tested for a variety of laminar flow configurations including wedge flows, incompressible flow on a flat plate at various Eckert numbers, compressible flow on an adiabatic flat plate at various Mach numbers, flow over a cylinder, uniform suction on a flat plate, and Howarth flow. The results show excellent agreement with solutions by other methods, even when as few as fifteen grid lines are used. A separate report entitled 'Film Cooling by Oblique Slot Injection' presents results for a variety of injection configurations which show the effects of coolant mass flow rate, injection angle, boundary layer thickness, slot width, and multiple slots. (Modified author abstract)

Descriptors :   *Two dimensional flow, *Boundary layer flow, *Partial differential equations, *Numerical integration, Laminar flow, Turbulent flow, Compressible flow, Incompressible flow, Computations, Computer applications

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE