Results 31 to 40 of about 87,747 (212)

Quantification of airfoil geometry-induced aerodynamic uncertainties - comparison of approaches [PDF]

open access: yes, 2016
Uncertainty quantification in aerodynamic simulations calls for efficient numerical methods since it is computationally expensive, especially for the uncertainties caused by random geometry variations which involve a large number of variables. This paper
Litvinenko, Alexander   +3 more
core   +2 more sources

Aerodynamic coefficients approximations for arbitrary angles

open access: yesElectronics and Control Systems, 2012
Розглянуто представлення основних аеродинамічних коефіцієнтів для довільних кутів атаки та ковзання. Декілька нелінійних апроксимацій запропоновано для опису коефіцієнтів підйомної та бокової сили, а також сили опору в діапазоні від 0 до 360 градусів з точки зору точності та ...
Z. V. Didyk, V. A. Apostolyuk
openaire   +1 more source

Reversible calculation of a projectile path applying the model of six degrees of freedom motion

open access: yesVojnotehnički Glasnik, 1998
During a projectile flight, together with the change of angles of attack, the H, P, M and T values of Murphy's coefficients are changed depending on the change of mass characteristics and derivatives of aerodynamic coefficients in the function of the ...
Dušan Regodić
doaj   +1 more source

Turbulent wind flow through permeable claddings mounted on elevated scaffold using CFD simulation

open access: yesEngineering Reports, 2021
An extensive numerical study was carried out to evaluate the turbulent wind effects on permeable nets and impermeable film claddings mounted on elevated access scaffolding using computational fluid dynamics techniques.
Ashish Agarwal, Hassan Irtaza
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.
Gundala, Naresh   +2 more
core  

CFD numerical simulation of aerodynamic characteristics of a UHV steel tubular transmission tower

open access: yesZhejiang dianli, 2023
The CFD (computational fluid dynamics) numerical simulation is used to study the aerodynamic characteristics of a UHV steel tubular transmission tower. A refined CFD numerical model of the whole transmission tower is established based on SOLIDWORKS and ...
WANG ZhenGuo   +4 more
doaj   +1 more source

The Aerodynamic Characteristics of Road Vehicles Overtaking on Bridge Deck under Crosswinds

open access: yesAdvances in Civil Engineering, 2020
The aerodynamic characteristics of road vehicles in windy environments are the prerequisites for the evaluation and prediction of the driving safety and stability.
Ning Chen   +3 more
doaj   +1 more source

Experimental Study on Dynamic Aerodynamic Characteristics of Different Antenna Aspect Ratios with Reduced Frequency

open access: yesInternational Journal of Antennas and Propagation, 2022
Radar antennas in the open air are affected by dynamic wind loading during azimuthal scanning. In this state, the acquisition and prediction of the aerodynamic load is the focus of the structure design for the antenna.
Yanqi Zhang, Zhaoming Zhang
doaj   +1 more source

The aerodynamic effects of wing rotation and a revised quasi-steady model of flapping flight [PDF]

open access: yes, 2002
We used a dynamically scaled model insect to measure the rotational forces produced by a flapping insect wing. A steadily translating wing was rotated at a range of constant angular velocities, and the resulting aerodynamic forces were measured using a ...
Dickinson, Michael H., Sane, Sanjay P.
core   +1 more source

Unsteady effects in flows past stationary airfoils with Gurney flaps due to unsteady flow separations at low Reynolds numbers [PDF]

open access: yesINCAS Bulletin, 2015
This paper presents the analysis of the unsteady flows past stationary airfoils equipped with Gurney flaps at low Reynolds numbers, aiming to study the unsteady behavior of the aerodynamic coefficients due to the flow separations occurring at these ...
Dan MATEESCU
doaj   +1 more source

Home - About - Disclaimer - Privacy