Results 11 to 20 of about 49,122 (277)
Interactional aerodynamics and acoustics of a hingeless coaxial helicopter with an auxiliary propeller in forward flight [PDF]
, 2008 The aerodynamics and acoustics of a generic coaxial helicopter with a stiff main rotor system and a tail- mounted propulsor are investigated using Brown's Vorticity Transport Model.
Brown, R.E. +7 more
core +10 more sources
Numerical study of the unsteady aerodynamics of helicopter rotor aerofoils
, 1999 A two-dimensional model of the aerodynamics of rotor blades in forward flight is proposed in which the motion of the blade is represented by periodical variations of the freestrearn velocity and incidence. A novel implicit methodology for the solution
Shaw, Scott
core +7 more sources
Inverse design of aerodynamic configuration using generative topographic mapping
Xibei Gongye Daxue Xuebao, 2022 The inverse design method of aerodynamic configuration is hard to give a reasonable pressure distribution, and strongly rely on experience of designers. The method has been difficult to adapt to the needs of modern aircraft design.
SONG Chao +4 more
doaj +1 more source
Modelling the aerodynamics of coaxial helicopters : from an isolated rotor to a complete aircraft [PDF]
, 2008 This paper provides an overview of recent research on the aerodynamics of coaxial rotors at the Rotorcraft Aeromechanics Laboratory of the Glasgow University Rotorcraft Laboratories.
Brown, Richard E., Kim, Hyo Won
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Aerospace, 2022 The internal weapon bay is widely used in modern aircraft; however, because the unsteady flows of the cavity would cause dangerous store separation and intense aerodynamic noise, the leading-edge spoiler is an easy and efficient passive flow-control ...
Pengcheng Cui +7 more
doaj +1 more source
The influence of Blade Chord on the Aerodynamics and Performance of Vertical Axis Wind Turbines [PDF]
, 2013 The climate change due to emissions from the combustion of fossil fuel to meet the ever increasing energy demands of the growing world population has roused the attention of governments and individuals to protect the environment.
Eboibi, Okeoghene
core +6 more sources
Journal of Advanced Ceramics, 2022 This work employed an inductively coupled plasma wind tunnel to study the dynamic oxidation mechanisms of carbon fiber reinforced SiC matrix composite (Cf/SiC) in high-enthalpy and high-speed plasmas.
Lingwei Yang +8 more
doaj +1 more source
Journal of Asian Ceramic Societies, 2021 The emissivity of typical SiC-based thermal protection materials was measured in-situ at a wide temperature range (800 ~ 2300°C) inside a plasma wind tunnel that was capable of simulating hypersonic environments on-ground.
Liping Liu +8 more
doaj +1 more source
Aerospace, 2022 Hypersonic vehicles are drawing more and more attention now and for the near future, especially in the low-altitudes near space, from 20 km to 45 km.
Pengcheng Cui +7 more
doaj +1 more source
Hypersonic aerodynamic force balance using temperature compensated semiconductor strain gauges
Advances in Aerodynamics, 2023 Metal foil strain gauges remain the state-of-the-art transducers for wind tunnel balances. While strain gauge technology is very mature, piezoresistive semiconductor sensors offer alternatives that are worth exploring to assess their unique benefits ...
Huacheng Qiu +5 more
doaj +1 more source