Results 11 to 20 of about 87,747 (212)

Airfoil’s Aerodynamic Coefficients Prediction using Artificial Neural Network

open access: yes2022 19th International Bhurban Conference on Applied Sciences and Technology (IBCAST), 2022
Figuring out the right airfoil is a crucial step in the preliminary stage of any aerial vehicle design, as its shape directly affects the overall aerodynamic characteristics of the aircraft or rotorcraft. Besides being a measure of performance, the aerodynamic coefficients are used to design additional subsystems such as a flight control system, or ...
Moin, Hassan   +3 more
openaire   +2 more sources

Aerodynamic characterization of a soft kite by in situ flow measurement [PDF]

open access: yesWind Energy Science, 2019
Wind tunnel testing of large deformable soft kites for wind energy conversion is expensive and in many cases practically not feasible. Computational simulation of the coupled fluid–structure interaction problem is scientifically challenging and of ...
J. Oehler, R. Schmehl
doaj   +1 more source

Estimation of aerodynamic coefficients for a ball by using characteristics of trajectory

open access: yesNihon Kikai Gakkai ronbunshu, 2014
We investigate estimation methods of aerodynamic coefficients for a ball in sports by using characteristic quantities of its trajectory. One method is based on the quantities representing the whole shape of trajectory while the other utilizes local ...
Kaito YASUDA   +3 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

Direct Estimation of Nonlinear Aerodynamic Coefficients [PDF]

open access: yesAIAA Atmospheric Flight Mechanics Conference and Exhibit, 2007
(Abstract) In this paper a parameter estimation technique is proposed which allows for direct updates to the aerodynamic coefficients represented in the form of table lookup. The proposed method is capable of capturing the nonlinearities in the coefficients.
Abhay Pashilkar, C Kamali, Jitendra Raol
openaire   +1 more source

Data Mining-Based Design Space Exploration and Optimization for Tandem Airfoils

open access: yesInternational Journal of Aerospace Engineering, 2023
The joined-wing configuration has great technical appeal for the development of next-generation SensorCraft. Research based on the simplified tandem airfoil system can improve understanding of the joined-wing configuration’s aerodynamic characteristics ...
Yayun Shi   +4 more
doaj   +1 more source

Numerical investigation on aerodynamic characteristics of a high-speed train travelling through a bridge–tunnel section under non-uniform airflows caused by mountain terrain effect

open access: yesEngineering Applications of Computational Fluid Mechanics, 2023
A thorough understanding of aerodynamic characteristics of a high-speed train in a bridge–tunnel section is of extremely importance to ensure the vehicle safety of driving. This study presents a numerical investigation on aerodynamic characteristics of a
Hao Hu   +4 more
doaj   +1 more source

Identification of aerodynamic coefficients of a projectile and reconstruction of its trajectory from partial flight data

open access: yesComputer Assisted Methods in Engineering and Science, 2017
Several optimization techniques are proposed both to identify the aerodynamic coefficients and to reconstruct the trajectory of a fin-stabilized projectile from partial flight data.
Vincent Condaminet   +5 more
doaj   +1 more source

Aerodynamic interference between two boxes in parallel arrangement and flow field characteristics around the girder

open access: yesAdvances in Bridge Engineering, 2022
Aerodynamic characteristics of long-span bridges with box girders have been investigated widely, and this paper presents a study on a cable-stayed bridge with two box girders in parallel arrangement.
Shuwen Fan   +3 more
doaj   +1 more source

Large eddy simulation on wind-induced interference effects of staggered chamfered square cylinders

open access: yesScientific Reports, 2023
Chamfered corners in buildings are the main means to reduce the control effect of wind load on the structure, and the interference effect of chamfered buildings cannot be ignored.
Wenlong Cao   +5 more
doaj   +1 more source

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