Results 61 to 70 of about 16,699 (209)

DLR Contribution to the First High Lift Prediction Workshop [PDF]

open access: yes, 2011
DLR’s contribution to the first AIAA High Lift Prediction Workshop (HiLiftPW-1) covers computations of all three scheduled test cases for the NASA trapezoidal wing in high lift configuration.
Crippa, Simone   +2 more
core   +1 more source

The Effects of Blowing Over Various Trailing-edge Flaps on an NACA 0006 Airfoil Section, Comparisons with Various Types of Flaps on other Airfoil Sections, and an Analysis of Flow and Power Relationships for Blowing Systems [PDF]

open access: yes
The results are presented of a two-dimensional investigation conducted to determine the effect of blowing over various types of trailing-edge flaps on a wing having the NACA 0006 airfoil section and a drooped-nose flap.
Dods, J. B., Jr., Watson, E. C.
core   +1 more source

Radiated noise from an externally blown flap [PDF]

open access: yes
The far field noise from subsonic jet impingement on a wing-flap with a 45 deg bend was experimentally investigated. The test parameters are jet Mach number and flap length.
Reddy, N. N., Yu, J. C.
core   +1 more source

Comparison of Aerodynamic Characteristics of Morphing and Conventional Wings [PDF]

open access: yesINCAS Bulletin
The present research investigates the advantages of a morphing versus a hinged flap. The morphing wing model is equipped with a morphing trailing edge, while the conventional wing has a hinged flap system.
Mir Hossein NEGAHBAN   +1 more
doaj   +1 more source

Acoustic characteristics of a large scale wind-tunnel model of a jet flap aircraft [PDF]

open access: yes
The expanding-duct jet flap (EJF) concept is studied to determine STOL performance in turbofan-powered aircraft. The EJF is used to solve the problem of ducting the required volume of air into the wing by providing an expanding cavity between the upper ...
Aiken, T. N.   +2 more
core   +1 more source

Improvement of maneuver aerodynamics by spanwise blowing [PDF]

open access: yes
Spanwise blowing was used to test a generalized wind-tunnel model to investigate component concepts in order to provide improved maneuver characteristics for advanced fighter aircraft. Primary emphasis was placed on performance, stability, and control at
Campbell, J. F., Erickson, G. E.
core   +1 more source

Airframe Noise Reduction Studies and Clean-Airframe Noise Investigation [PDF]

open access: yes
Acoustic wind tunnel tests were conducted of a wing model with modified leading edge slat and trailing edge flap. The modifications were intended to reduce the surface pressure response to convected turbulence and thereby reduce the airframe noise ...
Bailey, D. A., Fink, M. R.
core   +1 more source

Flow Control-Based Aerodynamic Enhancement of Vertical Axis Wind Turbines for Offshore Renewable Energy Deployment

open access: yesJournal of Marine Science and Engineering
As wind energy development continues to expand toward nearshore and deep-sea regions, enhancing the aerodynamic efficiency of vertical axis wind turbines (VAWTs) in complex marine environments has become a critical challenge. To address this, a composite
Huahao Ou   +6 more
doaj   +1 more source

Wing surface-jet interaction characteristics of an upper-surface blown model with rectangular exhaust nozzles and a radius flap [PDF]

open access: yes
The wing surface jet interaction characteristics of an upper surface blown transport configuration were investigated in the Langley V/STOL tunnel. Velocity profiles at the inboard engine center line were measured for several chordwise locations, and ...
Bloom, A. M.   +2 more
core   +1 more source

Effect of thrust vectoring and wing maneuver devices on transonic aeropropulsive characteristics of a supersonic fighter [PDF]

open access: yes
The aeropropulsive characteristics of an advanced fighter designed for supersonic cruise were determined in the Langley 16-Foot Transonic Tunnel. The objectives of this investigation were to evaluate the interactive effects of thrust vectoring and wing ...
Capone, F. J., Reubush, D. E.
core   +1 more source

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