Results 101 to 110 of about 3,951 (249)

Evaluation of advanced lift concepts and fuel conservative short-haul aircraft, volume 1 [PDF]

The performance and economics of a twin-engine augmentor wing airplane were evaluated in two phases. Design aspects of the over-the-wing/internally blown flap hybrid, augmentor wing, and mechanical flap aircraft were investigated for 910 m.
Bennett, J. A., Bowden, M. K., Ferrill, R. S., Meyer, R. T., Narucki, C. W., Patterson, R. W., Randall, C. C., Renshaw, J. H., Smith, P. R., Tibbetts, J. G.   +9 more
core   +1 more source

Pressure distributions and oil-flow patterns for a swept circulation-control wing [PDF]

Pressure distributions and photographs of oil flow patterns are presented for a circulation control wing. The model was an aspect ratio four semispan wing mounted on the side wall of the NASA Ames Transonic Wind Tunnel. The airfoil was a 20 percent thick
Keener, Earl R., Sanderfer, Dwight T., Wood, Norman J.   +2 more
core   +1 more source

A computational model for three-dimensional incompressible wall jets with large cross flow [PDF]

, 1979
A computational model for the flow field of three dimensional incompressible wall jets prototypic of thrust augmenting ejectors with large cross flow is presented.
Malmuth, N. D., Murphy, W. D., Shankar, V.   +2 more
core   +1 more source

Boundary-layer and wake measurements on a swept, circulation-control wing [PDF]

Wind tunnel measurements of boundary layer and wake velocity profiles and surface static pressure distributions are presented for a swept, circulation control wing.
Keener, Earl R., Spaid, Frank W.
core   +1 more source

Pilot Demonstration of a New Tip for Effective Gas Flaring in the Permian Basin: Part 1. [PDF]

ACS Omega, 2023
Kamel A, Alzahabi A.
europepmc   +1 more source

Free-flight wind-tunnel investigation of a four-engine sweptwing upper-surface blown transport configuration [PDF]

The dynamic stability and control characteristics of a four-engine turbofan transport model having an upper-surface blown jet flap were investigated by means of the free-flight technique in the Langley full-scale tunnel. The flight characteristics of the
Parlett, L. P.
core   +1 more source

Research on atomization characteristics and dust suppression performance of a new negative-pressure spraying device

Meikuang Anquan
To address the issue of dust dispersion in fully mechanized mining faces, a novel negative pressure-spraying dust suppression device based on the principle of the Coanda effect was designed.
Yahang LI, Honghong YAN, He ZHENG, Hong ZHANG, Licai YUAN   +4 more
doaj   +1 more source

Potential acoustic benefits of circulation control rotors [PDF]

The fundamental aeroacoustic mechanisms responsible for noise generation on a rotating blade are theoretically examined. Their contribution to the overall rotor sound pressure level is predicted.
Cheeseman, I. C., Williams, R. M.
core   +1 more source

Analytical and experimental investigation of circulation control by means of a turbulent Coanda jet [PDF]

An analytical and experimental investigation of circulation control on a circular cylinder by means of tangential blowing (Coanda effect) is presented. The analytical method developed has also been used to estimate the blowing coefficients required for ...
Levinsky, E. S., Yeh, T. T.
core   +1 more source

Structural optimization and intelligent parameter control of ventilation and dust removal systems for comprehensive excavation workface

Gong-kuang zidonghua
This study addressed the challenges of vortex formation and dead air zones in traditional long-pressure short suction ventilation and dust removal systems.
LIU Dandan, SHEN Qixiang, WANG Weilian, GUO Shengjun, WANG Chunmei, HE Ping   +5 more
doaj   +1 more source