Results 21 to 30 of about 9,635,660 (350)
Aerodynamic characteristics of morphing wing with flexible leading-edge
, 2020 The morphing wing can improve the flight performance during different phases. However, research has been subject to limitations in aerodynamic characteristics of the morphing wing with a flexible leading-edge.
Zi Kan +4 more
semanticscholar +1 more source
Investigation of Stall Flutter Based on Peters-ONERA Aerodynamic Model [PDF]
Xibei Gongye Daxue Xuebao, 2018 The Peters model is used to simulate the linear aerodynamic force and ONERA stall model is used to simulate the nonlinear aerodynamic force. The state-space equation of the aeroelastic system is established by coupling the structural equation.
doaj +1 more source
Engineering Applications of Computational Fluid Mechanics, 2018 The focus of this study was the influence of the length of a train on its aerodynamic performance, with and without wind break walls, under a crosswind.
Jiqiang Niu, Dan Zhou, Xifeng Liang
doaj +1 more source
eLife, 2021 How hummingbirds hum is not fully understood, but its biophysical origin is encoded in the acoustic nearfield. Hence, we studied six freely hovering Anna’s hummingbirds, performing acoustic nearfield holography using a 2176 microphone array in vivo ...
Ben J Hightower +7 more
doaj +1 more source
Main rotor-tail rotor intraction and its implications for helicopter directional control [PDF]
, 2008 Aerodynamic interference between the main and tail rotor can have a strong negative influence on the flight mechanics of a conventional helicopter. Significant unsteadiness in the tail rotor loading is encountered under certain flight conditions, but the
Brown, R.E., Fletcher, Timothy M.
core +1 more source
Investigation on the Interference of Pre-bending Support Joint in Rotary Balance Test
Hangkong gongcheng jinzhan, 2020 In order to get a wide range of angles of attack, pre-bending support joints are used in rotary balance test. The pre-bending support joint is located in the model wake region at low angle of attack.
ZHANG Yongsheng +5 more
doaj +1 more source
Neuromuscular control of aerodynamic forces and moments in the blowfly, Calliphora vicina [PDF]
, 2004 Flies are among the most agile of flying insects, a capacity that ultimately results from their nervous system's control over steering muscles and aerodynamic forces during flight.
Balint, Claire N., Dickinson, Michael H.
core +1 more source
A computational assessment of the aerodynamic performance of a tilted Darrieus wind turbine [PDF]
, 2015 The aerodynamic performance of a Darrieus wind turbine operating with the rotation axis tilted with respect to the free-stream wind speed is investigated in this paper. An Unsteady Reynolds Averaged Navier Stokes (URANS) Computational Fluid Dynamics (CFD)
Bedon, Gabriele +2 more
core +1 more source
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1991 The aerodynamic characteristics of reaction stages of a large steam turbine have been studied for the purpose of performance improvement. For the second step, the characteristics of the multistage with typical reaction bladings were studied by two-dimensional low-speed cascade tests and three-stage air turbine tests.
Yasuo KURAMOTO +4 more
openaire +2 more sources
Towards a Balanced Design of a Grid Fin with Lightweight Aerodynamics and Structural Integrity
AerospaceIt is widely accepted that the lightweight design of a grid fin is closely related to its aerodynamic performance and structural integrity, while limited work seeks their balance.
Yuxin Liu, Mingliang Zhu, Fuzhen Xuan
doaj +1 more source