Accession Number : ADA186689

Title :   Predicting Dynamic Separation Characteristics of General Configurations.

Descriptive Note : Final rept. Apr 84-Jul 87,

Corporate Author : ANALYTICAL METHODS INC REDMOND WA

Personal Author(s) : Maskew, B ; Dvorak, F A

PDF Url : ADA186689

Report Date : Jul 1987

Pagination or Media Count : 48

Abstract : A procedure has been developed for treating the dynamic interaction between a separated wake and a surface undergoing an unsteady motion. The basis of the method is an unsteady (time-stepping) panel method coupled with unsteady integral boundary layer codes. Pilot codes have been developed for both two and three dimensional conditions. Results presented here are mainly from the two-dimensional code in which the various routines for controlling the dynamic wake model have been developed. Some viscous/inviscid three-dimensional results are shown. The long term objective is to treat complete aircraft configurations through high angle-of-attack maneuvers. Keywords: Unsteady; Time stepping calculations; Dynamic separated wake model; Coupled viscous inviscid calculations.

Descriptors :   *FLOW SEPARATION, *WAKE, AIRCRAFT, DYNAMICS, INTERACTIONS, ANGLE OF ATTACK, HIGH ANGLES, FLIGHT MANEUVERS, CODING, THREE DIMENSIONAL, COUPLING(INTERACTION), INVISCID FLOW, VISCOSITY, SEPARATION, MATHEMATICAL MODELS, TWO DIMENSIONAL, COMPUTATIONS, MATHEMATICAL PREDICTION, POTENTIAL FLOW, UNSTEADY FLOW, BOUNDARY LAYER FLOW

Subject Categories : Aerodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE