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):

Report Date:

1975-09-01

Pagination or Media Count:

77.0

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

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE