A Study of Aerodynamic Control in Stalled Flight Long Laminar Separation Bubble Analysis

Item

Title
A Study of Aerodynamic Control in Stalled Flight Long Laminar Separation Bubble Analysis
Date
1985
Index Abstract
Coming Soon
Photo Quality
Not Needed
Report Number
AFWAL TR 84-3091
Creator
Dvorak, F. A.
Choi, D. H.
Corporate Author
Analytical Methods, Inc.
Laboratory
Flight Dynamics Laboratory
Date Issued
1985-02-01
Extent
28
Identifier
ADA153850
Access Rights
Approved for public release; distribution unlimited.
Distribution Classification
1
Contract
F33615-81-C-3626
DoD Project
2307
DTIC Record Exists
No
Distribution Change Authority Correspondence
None
Abstract
This report describes an analysis method for laminar separation bubbles (long or short) on two-dimensional airfoil sections at incidence. A viscous/potential flow iterative procedure was chosen due to its simple and efficient nature. The boundary layer procedure is a finite-difference method, sometimes referred to as the 'Bosx Scheme', and uses the Cebeci-Smith two-layer, eddy viscosity model for turbulence closure. The potential flow calculation in such a way that it gives constant pressure along the surface inside the bubble, The coupled calculation procedure has been applied to the NACA 64A006 airfoil and satisfactory results have been obtained. Keywords: Panel methods; and Laminar separation bubble.
Report Availability
Full text available by request
Provenance
AFRL/VACA
Type
report
Format
28 pages ; 28 cm.