Accession Number : AD0782357

Title :   Transonic Laminar Viscous-Inviscid Interaction over Airfoils.

Descriptive Note : Final rept.,

Corporate Author : NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD AVIATION AND SURFACE EFFECTS DEPT

Personal Author(s) : Tai,Tsze C.

Report Date : JUN 1974

Pagination or Media Count : 68

Abstract : A theoretical model consisting of an inviscid external flow and a viscous boundary layer flow is formulated for the problem of transonic laminar viscous-inviscid interaction over airfoils. Both attached and separated boundary layers are considered for either weak or strong interactions. The governing equations for both inviscid and viscous flows are all reduced to first-order ordinary differential equations and integrated simultaneously in the case of strong interactions. The weak interaction is accounted for by simply correcting the airfoil surface with the boundary layer displacement thickness. The pertinent two-point boundary value problem is then solved by the initial value technique. (Modified author abstract)

Descriptors :   *Lifting bodies, *Transonic characteristics, *Viscous flow, *Inviscid flow, Interactions, Airfoils, Laminar flow, Mathematical models, Laminar boundary layer, Attachment, Flow separation, Equations of motion, Differential equations, Analysis of variance

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE