|
|
|
|
|
Hao Li, Yuping Li, Zhongliang Zhao, Xiaobing Wang, Haiyong Yang and Shang Ma
To research serious nonlinear coupling problems among aerodynamics, flight mechanics, and flight control during high maneuvers, a virtual flight testing platform has been developed for a large-scale, high-speed wind tunnel, based on the real physical env...
ver más
|
|
|
|
|
|
|
|
|
|
|
Davide Ferretto, Oscar Gori, Roberta Fusaro and Nicole Viola
Recent studies have revealed that control surface deflection can cause a reduction in the aerodynamic efficiency of a hypersonic aircraft of up to 30%. In fact, the characterization of the Flight Control System is essential for the estimation of the cons...
ver más
|
|
|
|
|
|
|
|
|
|
|
Michal Schmirler
In the context of aircraft aerodynamics, the compressibility of air flowing around the aircraft must always be considered. This fact brings with it one inconvenience: to evaluate the velocity of the flowing air (airspeed), it is necessary to know its tem...
ver más
|
|
|
|
|
|
|
|
|
|
|
Gottfried Sachs, Benedikt Grüter and Haichao Hong
Dynamic soaring is a flight mode that uniquely enables high speeds without an engine. This is possible in a horizontal shear wind that comprises a thin layer and a large wind speed. It is shown that the speeds reachable by modern gliders approach the upp...
ver más
|
|
|
|
|
|
|
|
|
|
|
Gottfried Sachs and Benedikt Grüter
Dynamic soaring is a non-powered flight mode that enables extremely high speeds by extracting energy from thin shear wind layers. Trajectory optimization is applied to construct solutions of the maximum speed achievable with dynamic soaring and to determ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Cheng Fu, Xinglong Gao, Yunqiang Sun, Jie Kou, Dachuan Xu and Jingxiang Chen
The maglev flight tunnel is a novel conceptual aerodynamics test facility, in which the complicated aerodynamic characteristics caused by the high-speed translation of a moving model in a long, straight, closed tunnel, and wave propagation and aero-struc...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ho-Sang Jang, Se-Yun Hwang and Jang-Hyun Lee
This study examines the heat flux and convective heat transfer generated when a vertical take-off and landing (VTOL) aircraft takes off and lands on the flight deck of a naval vessel. A procedure for analyzing the convective heat transfer imposed on the ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Bo Yang, He Yu, Chaofan Liu, Xiang Wei, Zichen Fan and Jun Miao
High-speed turbulence is generated when hypersonic vehicles fly in the atmosphere, which can create aero-optical effects and interfere with optical navigation and guidance systems. At the same time, the front end and optical window of hypersonic vehicles...
ver más
|
|
|
|
|
|
|
|
|
|
|
Andrea Aprovitola, Oleksandr Dyblenko, Giuseppe Pezzella and Antonio Viviani
The recent improvement of technology readiness level in aeronautics and the renewed demand for faster transportation are driving the rebirth of supersonic flight for commercial aviation. However, the design of a future supersonic aircraft is still very c...
ver más
|
|
|
|
|
|
|
|
|
|
|
Satoshi Hyokawa and Masazumi Ueba
The Aerospace Plane Research Center at the Muroran Institute of Technology is currently conducting research to develop enabling technologies for high-speed aircraft traveling at high altitudes and constructing experimental, small-scale, unmanned superson...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shuaibin An, Jianwen Zang, Ming Yan, Baiyang Zhu and Jun Liu
Wide-speed-range vehicles are characterized by high flight altitude and high speed, with significant changes in the flight environment. Due to the strong uncertainty of its aerodynamic characteristics, higher requirements are imposed on attitude control....
ver más
|
|
|
|
|
|
|
|
|
|
|
Hao Qi, Shi-Jie Cao, Jia-Yue Wu, Yi-Ming Peng, Hong Nie and Xiao-Hui Wei
The tail-sitter VTOL UAV boasts not only high-speed cruising and air hovering capabilities, but also its unique tail-sitting vertical takeoff and landing and hovering attitude enable aerial operations with an exceptionally small cross-sectional area. Thi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ye Yuan, Douglas Thomson and David Anderson
The tiltrotor has unique flight dynamics due to the aerodynamic interference characteristics. Multiple aerodynamics calculation approaches, such as the CFD method, are utilised to characterise this feature. The calculation process is usually time-consumi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhaoxia Lou, Fang Xin, Xiaoqiang Han, Yubin Lan, Tianzhu Duan and Wei Fu
Unmanned aerial vehicles (UAVs), as emerging plant protection machinery, have the advantages of high operational efficiency, high speed, and low drift. The current study aimed to elucidate the characteristics of droplet distribution and drift, control ef...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ryunosuke Masaoka, Gia Khanh Tran, Jin Nakazato and Kei Sakaguchi
Nowadays, wireless communications are ubiquitously available. However, as pervasive as this technology is, there are distinct situations, such as during substantial public events, catastrophic disasters, or unexpected malfunctions of base stations (BSs),...
ver más
|
|
|
|
|
|
|
|
|
|
|
Hidemi Takahashi
A practical approach for deriving the absolute density field based on the background-oriented schlieren method in a high-speed flowfield was implemented. The flowfield of interest was a two-dimensional compressible flowfield created by two supersonic str...
ver más
|
|
|
|
|
|
|
|
|
|
|
Francesco Rea, Francesco Amoroso, Rosario Pecora and Frederic Moens
Modern transport aircraft wings have reached near-peak levels of energy-efficiency and there is still margin for further relevant improvements. A promising strategy for improving aircraft efficiency is to change the shape of the aircraft wing in flight i...
ver más
|
|
|
|
|
|
|
|
|
|
|
Hidemi Takahashi
A practical approach for deriving the absolute density field based on the background-oriented schlieren method in a high-speed flowfield was implemented. The flowfield of interest was a two-dimensional compressible flowfield created by two supersonic str...
ver más
|
|
|
|
|
|
|
|
|
|
|
Francesco Rea, Francesco Amoroso, Rosario Pecora and Frederic Moens
Modern transport aircraft wings have reached near-peak levels of energy-efficiency and there is still margin for further relevant improvements. A promising strategy for improving aircraft efficiency is to change the shape of the aircraft wing in flight i...
ver más
|
|
|
|
|
|
|
|
|
|
|
Christopher Simon Beaverstock, Benjamin King Sutton Woods, James Henry Sun-Ming Fincham and Michael Ian Friswell
Morphing technology offers a strategy to modify the wing geometry, and the wing planform and cross-sectional parameters can be optimised to the flight conditions. This paper presents an investigation into the effect of span and camber morphing on the mis...
ver más
|
|
|
|
|
|