An overview of the NASA F-18 high alpha research vehicle

AH Bowers, JW Pahle, RJ Wilson, BC Flick… - High-Angle-of-Attack …, 1996 - ntrs.nasa.gov
This paper gives an overview of the NASA F-18 High Alpha Research Vehicle. The three
flight phases of the program are introduced, along with the specific goals and data examples …

Integrated design of an active flow control system using a time-dependent adjoint method

EJ Nielsen, WT Jones - Mathematical Modelling of Natural …, 2011 - cambridge.org
An exploratory study is performed to investigate the use of a time-dependent discrete adjoint
methodology for design optimization of a high-lift wing configuration augmented with an …

Application frontiers of'designer fluid mechanics'-Visions versus reality or an attempt to answer the perennial question'why isn't it used'?

D Bushnell, D Bushnell - 28th Fluid Dynamics Conference, 1997 - arc.aiaa.org
Any new concept must successfully transit two sequential" filters" between research initiation
and application, a technical filter (does it work?) and a technological filter (does it make …

Closed-loop control of forebody flow asymmetry

J Bernhardt, D Williams - 33rd Aerospace Sciences Meeting and …, 1996 - arc.aiaa.org
Introduction For many years, it has been known that slender bodies of revolution develop
strong side forces at large angles of atta~ kl,~,~,~. The side forces begin to appear at an …

F-15 forebody vortex flow control using jet nozzle blowing

KP Iwanski, MJ O'Rourke - Journal of aircraft, 1996 - arc.aiaa.org
EXISTING fighter aircraft possess limited directional con-trol authority at moderate to high
angles of attack, because of the loss of effectiveness of the empennage surfaces as they …

Exploratory Investigation of Forebody Strakes for Yaw Control of a Generic Fighter with a Symmetric 60 deg Half-Angle Chine Forebody

HM Ross, MJ ORourke - 1997 - ntrs.nasa.gov
Forebody strakes were tested in a low-speed wind tunnel to determine their effectiveness
producing yaw control on a generic fighter model with a symmetric 60 deg half-angle chine …

Experimental investigation of slot blowing for yaw control on a generic fighter configuration with a chined forebody

M O'Rourke - 13th Applied Aerodynamics Conference, 1995 - arc.aiaa.org
ABSTRACT A low speed wind tunnel investigation was conducted to study the use of slot
blowing for directional control on a generic fighter configuration with a chined forebody. The …

[引用][C] Scale effects on aircraft and weapon aerodynamics(Les effets d'echelle et l'aerodynamique des aeronefs et des systemes d'armes)

A HAINES, AD Young - 1994

Effect of actuated forebody strakes on the forebody aerodynamics of the NASA F-18 HARV

DF Fisher, DG Murri, WR Lanser - 1996 - ntrs.nasa.gov
Extensive pressure measurements and off-surface flow visualization were obtained on the
forebody and strakes of the NASA F-18 High Alpha Research Vehicle (HARV) equipped with …

The dynamic character of the flow over a 3.5 caliber tangent-ogive cylinder in steady and maneuvering states at high incidence

MD Zeiger - 2013 - search.proquest.com
Although complex, inconsistent and fickle, the time-averaged flow over a stationary slender
forebody is generally well-understood. However, the nature of unsteady, time-varying flows …