Results 11 to 20 of about 20,749 (266)

Safety Analysis of Aircraft Icing Detection System Based on Fault Tree

open access: yesHangkong gongcheng jinzhan, 2018
Aircraft icing detection system is very important to guarantee flight safety. It is also a new problem to assess safety of the aircraft icing detection system.
Wang Xiaohui   +3 more
doaj   +1 more source

Study on Interior Aerodynamic Noise Characteristics of the High-Speed Maglev Train in the Low Vacuum Tube

open access: yesApplied Sciences, 2022
As the next-generation high-speed transportation system, the low vacuum tube high-speed maglev system combines the tube with a certain degree of vacuum with the high-speed maglev train, which can realize high-speed operation under low aerodynamic ...
Jiali Liu   +3 more
doaj   +1 more source

Numerical Investigation on Aerodynamic Drag and Noise of Pantographs with Modified Structures [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
It is well known that the pantograph, which works as a complex component of high-speed trains, is an important source of aerodynamic drag and aerodynamic noise of a high-speed train (HST) that can affect HST performance, comfort for passengers, and ...
Y. Yao   +5 more
doaj   +1 more source

The Aerodynamic Characteristics of Steam Turbine Reaction Stages. (Aerodynamic Characteristics of Multistages).

open access: yesTRANSACTIONS 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.
KURAMOTO, Yasuo   +4 more
openaire   +2 more sources

X-33 Hypersonic Aerodynamic Characteristics [PDF]

open access: yesJournal of Spacecraft and Rockets, 1999
Lockheed Martin Skunk works, under a cooperative agreement with NASA, will build and fly the X-33, a half-scale prototype of a rocket-based, single-stage-to-orbit (SSTO), reusable launch vehicle (RLV). A 0.007-scale model of the X-33 604B0002G configuration was tested in four hypersonic facilities at the NASA Langley Research Center to examine vehicle ...
Kelly Murphy   +4 more
openaire   +1 more source

Assessment of Impact of Aerodynamic Loads on the Stability and Control of the Gyrocopter Model

open access: yesCommunications, 2020
Aerodynamic modelling currently relates to development of mathematical models to describe the aerodynamic forces and moments acting on the aircraft.
Tomasz Lusiak   +3 more
doaj   +1 more source

New Aerodynamic Studies of an Adaptive Winglet Application on the Regional Jet CRJ700

open access: yesBiomimetics, 2021
This study aims to evaluates how an adaptive winglet during flight can improve aircraft aerodynamic characteristics of the CRJ700. The aircraft geometry was slightly modified to integrate a one-rotation axis adaptive winglet.
Marine Segui   +3 more
doaj   +1 more source

Aerodynamic characteristics of a quadcopter with propellers [PDF]

open access: yesAIP Conference Proceedings, 2021
The characteristics performance of the small quadcopter was measured in a wind tunnel. The effect of propellers on the lift and drag of the quadcopter frame has been found. The quadcopter descent stage was investigated numerically by the RANS approximation.
P. A. Polivanov, A. A. Sidorenko
openaire   +1 more source

Calculation and analysis of aerodynamic characteristics for airfoils immersed in two-dimensional jet flow

open access: yesXibei Gongye Daxue Xuebao, 2022
In order to study the aerodynamic interaction of the airfoil and jet flow, the free streamline model and the panel method are combined to establish a calculation method for the aerodynamic characteristics of the airfoil in a two-dimensional inviscid jet ...
LI Xu, ZHOU Zhou, GUO Jiahao, XUE Chen
doaj   +1 more source

In Vivo Aerodynamic Characteristics of the Nijdam Voice Prosthesis [PDF]

open access: yesActa Oto-Laryngologica, 1997
The Nijdam voice prosthesis is an indwelling valveless voice prosthesis for postlaryngectomy voice rehabilitation. The in vitro aerodynamic characteristics are reported to be comparable to that of the low-resistance Groningen voice prosthesis. Owing to the design of the prosthesis the airflow resistance depends on the shaft length of the voice ...
Hoogen, F.J.A. van den   +4 more
openaire   +4 more sources

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