Results 21 to 30 of about 19,794 (265)

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  

An Improved Nonlinear Aerodynamic Derivative Model of Aircraft at High Angles of Attack

open access: yesInternational Journal of Aerospace Engineering, 2021
The classical aerodynamic derivative model is widely used in flight dynamics, but its application is extremely limited in cases with complicated nonlinear flows, especially at high angles of attack.
Mi Baigang, Yu Jingyi
doaj   +1 more source

Study on Nonlinear Aerodynamic Characteristics of a Semi-Closed Box Bridge Deck Based on Coupled Amplitude Variation

open access: yesApplied Sciences, 2022
This paper explores the nonlinear characteristics of the self-excited aerodynamic forces of a semi-closed box deck section to perfect the theory of aeroelastic response analysis.
Haoyang Lu   +3 more
doaj   +1 more source

X-34 vehicle aerodynamic characteristics [PDF]

open access: yes16th AIAA Applied Aerodynamics Conference, 1998
The X-34, being designed and built by the Orbital Sciences Corporation, is an unmanned sub-orbital vehicle designed to be used as a flying test bed to demonstrate key vehicle and operational technologies applicable to future reusable launch vehicles. The X-34 will be air-launched from an L-1011 carrier aircraft at approximately Mach 0.7 and altitudes ...
openaire   +1 more source

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

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

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.
KURAMOTO, Yasuo   +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

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

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