Results 21 to 30 of about 147,531 (294)

Observations on some transonic wind tunnel test results of a standard model with a T-tail [PDF]

open access: yesScientific Technical Review, 2016
As a part of a periodic health monitoring of the wind tunnel structure, instrumentation and flow quality, a series of tests of an AGARD-C calibration model was performed in the 1.5 m T-38 trisonic wind tunnel of the Military Technical Institute (VTI) in ...
Damljanović Dijana   +4 more
doaj  

Aerodynamic Layout Evaluation of Hydrogen-powered Fixed-wing Unmanned Aerial Vehicle(UAV) by Numerical Simulation

open access: yesTaiyuan Ligong Daxue xuebao, 2021
For the aerodynamic layout selection of a long-endurance hydrogen energy hybrid unmanned aerial vehicle(UAV), this paper carried out a numerical simulation of aerodynamic characteristics for a certain design plan, in order to provide data support for the
Haiping TIAN   +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.
Yasuo KURAMOTO   +4 more
openaire   +2 more sources

Unsteady Aerodynamic Characteristics of Antenna Rotating in Different Elevation Angles

open access: yesInternational Journal of Antennas and Propagation, 2021
The aerodynamic characteristics of radar antennas should be considered in computing their wind resistance and designing pedestal servo systems. In this paper, the aerodynamic characteristics of a flat plate antenna with azimuthal rotation are explored ...
Yanqi Zhang, Zhaoming Zhang
doaj   +1 more source

Research on aerodynamic integrity of military aircraft

open access: yesHangkong gongcheng jinzhan
The aerodynamic integrity of aircraft can comprehensively characterize the aerodynamic mass characteristics of aircraft during service(combat)use.
ZHANG Dengcheng   +4 more
doaj   +1 more source

Wind Tunnel Test Investigation on Unsteady Aerodynamic Coefficients of Iced 4-Bundle Conductors

open access: yesAdvances in Civil Engineering, 2019
Iced conductor motion is induced by the aerodynamic instability of these conductors. The unsteady aerodynamic characteristics are different from the steady aerodynamic characteristics.
Mengqi Cai   +3 more
doaj   +1 more source

Analysis on the Propeller Slipstream Interference with Autorotating Rotor Aerodynamic Characteristics

open access: yesHangkong gongcheng jinzhan, 2020
The propeller slipstream passed through the rotor plane when the autogyro is flying forward, will produce the unsteady aerodynamic interference on the autorotating rotor.
WU Weiwei, MA Cunwang, SUN Kaijun
doaj   +1 more source

Aerodynamic Characteristics of Steam Turbine Reaction Stages. (Aerodynamic Characteristics of a Single Stage).

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 basis of performance improvement. For the first step, the characteristics of a single reaction stage with typical reaction blading were studied by two-dimensional low-speed cascade tests and single-stage air turbine tests.
Yasuo KURAMOTO   +4 more
openaire   +2 more sources

Airfoil Design Optimization of Blended Wing Body for Various Aerodynamic and Stealth Stations

open access: yesAerospace
The airfoil is the foundation of an aircraft, and its characteristics have a significant impact on those of the aircraft. Conventional airfoil design mainly focuses on improving aerodynamic performance, while flying wing airfoil designs should also ...
Wei Zhang   +5 more
doaj   +1 more source

A Quality Improvement Initiative to Standardize Pneumocystis jirovecii Pneumonia Prophylaxis in Pediatric Patients With Solid Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar   +8 more
wiley   +1 more source

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