Results 21 to 30 of about 635,092 (276)
Research status and prospect of wind-vehicle-bridge coupling vibration system
To promote and develop the theoretical basis and application of the wind-vehicle-bridge coupling vibration system, the corresponding research status and prospects are reviewed and discussed from five aspects, i.e., the analytical framework, the ...
Wanshui Han +5 more
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Aerodynamic Optimization of a Micro Quadrotor Aircraft with Different Rotor Spacings in Hover
In order to study the aerodynamic performance of the quadrotor with different rotor spacings in hover, experiments were performed together with numerical simulations. For experimental study, an experimental platform was designed to measure the thrust and
Yao Lei, Hengda Wang
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Contribution to the propeller aerodynamic interference [PDF]
AbstractPropeller wake can significantly change the flowfield at the downstream lifting surfaces and therefore influence its aerodynamic coefficients. The numerical model of the propeller presented here is using discrete vortices to form vortex sheet that is leaving each blade.
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In order to improve traditional hypersonic wind tunnel airframe/propulsion integrated aerodynamic testing technology for hypersonic vehicles, a new force measurement system called the aerodynamic force measuring support (AFMS) was designed.
Shichao Li +3 more
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Aerodynamic Interference Between Two Darrieus Wind Turbines [PDF]
The effect of aerodynamic interference on the performance of two curved bladed Darrieus-type vertical axis wind turbines has been calculated using a vortex/lifting line aerodynamic model. The turbines have a tower-to-tower separation distance of 1.5 turbine diameters, with the line of turbine centers varying with respect to the ambient wind direction ...
P. SCHATZLE, P. KLIMAS, H. SPAHR
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Aerodynamic Optimization of an Over-the-Wing-Nacelle-Mount Configuration
An over-the-wing-nacelle-mount airplane configuration is known to prevent the noise propagation from jet engines toward ground. However, the configuration is assumed to have low aerodynamic efficiency due to the aerodynamic interference effect between a ...
Daisuke Sasaki, Kazuhiro Nakahashi
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Aerodynamic Interference between Over-Wing-Nacelle and Wing [PDF]
This paper addresses the complex aerodynamic interaction between a rectangular, unswept wing-segment and an over-the-wing mounted ultra-high bypass ratio (UHBR) engine. In the past, various studies have revealed a beneficial interference effect with respect to installation drag due to over-wing-nacelles (OWN).
Lange, Fabian, Kotzem, Michael
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Aerodynamic moment characteristics of tandem-scheme aircraft [PDF]
Aerodynamic interference between forward and back wings of tandem-scheme aircraft significantly affects its pitch and roll moments. The interference increases roll stability in a narrow range of sideslip angles; there is a kink on the dependence of roll ...
Kryvokhatko Illia
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Since child aircraft are significantly impacted by the wake interference from the mother aircraft during aerial refueling or the autonomous recovery of unmanned aerial vehicles(UAVs), a rapid prediction model for dual‑aircraft aerodynamic interference is
YUE Hao +4 more
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ADRC Attitude Controller Design for Hypersonic Vehicle based on MIMO-ESO
For the hypersonic vehicle nonlinear attitude mode in reentry process with a strong coupling, aerodynamic parameter perturbations and non-deterministic, combine extended state observer and nonlinear law state error feedback, design the hypersonic vehicle
Wen JianHua, Qin ChangMao, Zhang Xin
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