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
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