Results 11 to 20 of about 5,415,034 (233)

Effect of aerodynamic braking plates installed in Inter-car gap on aerodynamic characteristics of high-speed train

open access: yesAlexandria Engineering Journal, 2023
With the continuous increase of train speeds, the aerodynamic drag force provided by aerodynamic braking plates can effectively solve problems of insufficient emergency braking force.
Yifan Li, Tian Li, Jiye Zhang
doaj   +3 more sources

Aerodynamic Characteristics and Its Sensitivity Analysis of a Cylindrical Projectile at Different Incidences

open access: yesApplied Sciences
The accurate evaluation of aerodynamic characteristics is a prerequisite and foundation for the design of high-performance aerodynamic shapes, navigation guidance, and strength of projectiles. The nonlinearity of aerodynamic calculations for a projectile
Shenghai Jiao   +4 more
doaj   +3 more sources

The comparison of aerodynamic and stability characteristics between conventional and blended wing body aircraft [PDF]

open access: yes, 2012
Aircraft with advanced wing geometry, like the flying wing or blended wing body configuration, seems to be the seed candidate of future aircraft. Compared with conventional aircraft, there are significant aerodynamic performance improvements because of ...
Wang, Faliang
core   +7 more sources

Identification of longitudinal aerodynamic characteristics of a strake-wing micro aerial vehicle by using artificial neural networks [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2021
Appropriate modeling of unsteady aerodynamic characteristics is required for the study of aircraft dynamics and stability analysis, especially at higher angles of attack.
Dariusz Rykaczewski   +4 more
doaj   +1 more source

Effect of cross wind on aerodynamic coefficients of ground vehicles. [PDF]

open access: yes, 2009
The present work investigates the variation of aerodynamic coefficients with the change in the angle of flow. A mathematical equation has been developed for predicting the aerodynamic coefficients, when a vehicle is subjected to crosswind.
Malviya, Vihar   +2 more
core   +4 more sources

Study on the Influence of Low-Level Jet on the Aerodynamic Characteristics of Horizontal Axis Wind Turbine Rotor Based on the Aerodynamics–Controller Interaction Method

open access: yesEnergies, 2022
Accurate prediction of the aerodynamic characteristics of wind rotors subjected to various wind profiles is of considerable importance in the aerodynamics and structural design of wind turbines.
Pan He, Jian Xia
doaj   +1 more source

Study on Aircraft Reliability Assessment in Flight Test and Service Period

open access: yesHangkong gongcheng jinzhan, 2020
The reliability level is one of the most significant indexes to be considered in aircraft design process. In order to guarantee the objectivity and accuracy of results, the study on aircraft reliability assessment in flight test and service period is ...
GUO Peng, ZHAO Xiaodong
doaj   +1 more source

Determining aerodynamic characteristics of small unmanned aerial vehicles involving flight experiment

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2023
The methodology, software and hardware and the results of determining the aerodynamic characteristics of a small-sized UAV on the basis of a flight experiment are considered in the article.
O. E. Lukyanov   +3 more
doaj   +1 more source

Influence of the Car Movable Aerodynamic Elements on Fast Road Car Cornering

open access: yesEnergies, 2022
In the case of road cars, road safety is the primary factor. The geometry of high-speed road cars has no regulatory restrictions. In addition to the high engine power and effective shape, they can use various types of additional movable aerodynamic ...
Janusz Ryszard Piechna   +6 more
doaj   +1 more source

An investigation into the mechanical damping characteristics of catenary contact wires and their effect on aerodynamic galloping instability [PDF]

open access: yes, 2003
Measurement of the damped oscillation of a section of the UK East Coast Main Line (ECML) catenary/contact wire system was undertaken, and the natural frequency and mechanical damping were found to be 1.4Hz and 0.05 respectively. This information was used
Craighead, I.A.   +3 more
core   +4 more sources

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