Results 41 to 50 of about 19,911 (166)

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

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.
KURAMOTO, Yasuo   +4 more
openaire   +2 more sources

Influence of permeability characteristics on the aerodynamic characteristics of airfoils

open access: yesHangkong gongcheng jinzhan
Feathers play an important role in bird flight activities, and porous media materials may be used to simulate the air permeability of bird feathers.
LI Fukun   +3 more
doaj   +1 more source

Identification and Modeling Method of Longitudinal Stall Aerodynamic Parameters of Civil Aircraft Based on Improved Kirchhoff Stall Aerodynamic Model

open access: yesAerospace, 2023
The stall aerodynamic model based on Kirchhoff’s theory of flow separation is widely used in the identification and modeling of stall aerodynamic parameters. However, it has two defects.
Lixin Wang   +4 more
doaj   +1 more source

Aerodynamics of Bluff Bodies and the Possibility of its Application in the Design of Trucks. Analytical Review

open access: yesМеханика машин, механизмов и материалов, 2011
The paper presents an overview of research in the field of aerodynamics of bluff bodies and some useful flows which are used in theoretical studies on the aerodynamics of aircraft.
V.S. Karabtsev , D.H. Valeev
doaj  

A Novel Aerodynamic Modeling Method Based on Data for Tiltrotor evtol

open access: yesApplied Sciences
A data-driven aerodynamic modeling method is proposed to address the problem that traditional modeling methods based on physical mechanisms cannot fully represent the special aerodynamic characteristics of tiltrotor evtol aircraft.
Haiyang Wang, Peng Li, Dongsu Wu
doaj   +1 more source

Airfoil seсtion in the near-sonic flow of gas

open access: yesАвіаційно-космічна техніка та технологія, 2021
The subject of investigation in this article is transonic flow. This is a condition in which local speeds of sound are appears on the wing surface, even at the subsonic speed of the nonturbulent flow. As a result, at a certain speed of the incoming flow,
Юрий Александрович Крашаница   +1 more
doaj   +1 more source

Some solvable non-linear equations related to aerodynamic instability phenomena

open access: yesVietnam Journal of Mechanics, 1994
This article proposes some forms of aerodynamic forces, looks for accurate solutions of core - pendent non-linear differential equations and analyses the characteristics of aerodynamic forces and of equation's solution.
Nguyen Dang Bich, Nguyen Vo Thong
doaj   +1 more source

THE AERODYNAMIC ANALYSIS OF THE PROFILES FOR FLYING WINGS [PDF]

open access: yesJournal of Defense Resources Management, 2013
The possibility of using an un-piloted aerial vector is determined by the aerodynamic characteristics and performances. The design for a tailless unmanned aerial vehicles starts from defining the aerial vector mission and implies o series of geometrical ...
Vasile PRISACARIU
doaj  

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