Results 31 to 40 of about 1,102,632 (282)

A Comparative Assessment of Aerodynamic Models for Buffeting and Flutter of Long-Span Bridges

open access: yesEngineering, 2017
Wind-induced vibrations commonly represent the leading criterion in the design of long-span bridges. The aerodynamic forces in bridge aerodynamics are mainly based on the quasi-steady and linear unsteady theory.
Igor Kavrakov, Guido Morgenthal
doaj   +1 more source

Aeroelastic Stability of an Aerial Refueling Hose–Drogue System with Aerodynamic Grid Fins

open access: yesAerospace, 2023
In this work, the aeroelastic stability of an aerial refueling system is investigated. The system is formed by a classical hose and drogue, and the novelty of our work is the inclusion of a grid fin configuration to improve its stability.
Keyvan Salehi Paniagua   +2 more
doaj   +1 more source

In vivo recording of aerodynamic force with an aerodynamic force platform

open access: yes, 2014
Flapping wings enable flying animals and biomimetic robots to generate elevated aerodynamic forces. Measurements that demonstrate this capability are based on tethered experiments with robots and animals, and indirect force calculations based on measured kinematics or airflow during free flight.
Lentink, David   +2 more
openaire   +2 more sources

Determination of Aerodynamic Forces and Control Requirement during Ground Effect

open access: yesInternational Journal of Aviation, Aeronautics, and Aerospace, 2019
The current work delivers the effect of ground proximity on longitudinal aerodynamic forces and the elevator deflection required for trimming the aircraft.
Ambuj Srivastava
doaj   +1 more source

Wind Tunnel Testing on Crosswind Aerodynamic Forces Acting on Railway Vehicles

open access: yesJournal of Fluid Science and Technology, 2010
This study is devoted to measure the aerodynamic forces acting on two railway trains, one of which is a high-speed train at 300km/h maximum operation speed, and the other is a conventional train at the operating speed 100km/h. The three-dimensional train
Hyeok-bin KWON   +2 more
doaj   +1 more source

Advances in modeling boundary layer turbulence and its effects on motion independent aerodynamic force of bridge decks

open access: yesAdvances in Bridge Engineering, 2022
Wind tunnel tests remain crucial to solving the wind-induced issues, such as buffeting. The turbulence impacts on the aerodynamic forces is vital to buffeting responses of a bridge, which has been neglected, for that traditional passive wind tunnel test ...
Lin Zhao   +4 more
doaj   +1 more source

Simulating the aerodynamical resuspension of a granular bed of microparticles [PDF]

open access: yesEPJ Web of Conferences
The deposition of micrometric particles in layers on various surfaces (e.g., ventilation ducts, industrial environments, nuclear reactors) has raised concerns due to potential resuspension in enclosed spaces or the atmosphere.
Sirur Flores Anuar Yamil   +3 more
doaj   +1 more source

Simulation on Powered Effects of BWB at Take-off Condition

open access: yesXibei Gongye Daxue Xuebao, 2020
The influence of engine powered effects on aerodynamic characteristics of BWB300, which was designed by the Airplane Concept Design Institute of Northwestern Polytechnical University, at take-off condition was analyzed by using the numerical simulation ...

doaj   +1 more source

Visual Explainable Convolutional Neural Network for Aerodynamic Coefficient Prediction

open access: yesInternational Journal of Aerospace Engineering, 2022
Recently, aerodynamic performance analysis has been widely studied due to its importance in aircraft design. Most works adopted computational fluid dynamics (CFD) simulation to compute the aerodynamic forces, which is time consuming.
Yanxuan Zhao   +3 more
doaj   +1 more source

Aerodynamic effects of corrugation configurations in sweeping- pitching flight [PDF]

open access: yesMATEC Web of Conferences, 2020
Some insects possess corrugated wings, which distinguish from the ordinary airfoils. It is important to research the corrugation effect on the aerodynamic performances.
Xuan Haibin   +3 more
doaj   +1 more source

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