Accession Number : ADA018865

Title :   Analysis of Transonic Viscous-Inviscid Interactions on Axisymmetric Afterbodies with Jet Effects and Boattail Injection in Separated Regions.

Descriptive Note : Final rept. Jun 74-Apr 75,

Corporate Author : AIR FORCE FLIGHT DYNAMICS LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Calarese,Wladimiro

Report Date : SEP 1975

Pagination or Media Count : 77

Abstract : The transonic flow with viscous-inviscid interactions over axisymmetric afterbodies is analyzed. Viscous effects are considered and iterated with the inviscid solution of the non-linear small perturbation equation. The jet flow is simulated by a sting-cone frustum combination. For boattail flow separation, the shear flow properties and the viscous mixing are calculated using a Korst base flow type of analysis. Boattail mass and energy injection are used in the separated region to obtain a favorable interference with the inviscid flow with consequent drag reduction. A complete program listing is provided. The program can be used for subsonic free stream Mach number and zero angle of attack. (Author)

Descriptors :   *Axially symmetric flow, *Transonic flow, *Boattail afterbodies, Jet mixing flow, Flow separation, Base flow, Jet flow, Inviscid flow, Interactions, Flow fields, Viscous flow, Mass flow, Mass energy relation, Shear properties, Perturbations, Equations, Injection, Interference, Computer programs, Drag, Bodies of revolution, Nozzles, Turbulent boundary layer

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE