Results 211 to 220 of about 5,959 (263)

Kinematic and aerodynamic modeling of flexible wings with wing root adjustment for flapping wing micro aerial vehicles. [PDF]

Sci Rep
Liu Z, Zhang X, Wang Z, Ye R.
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Aerodynamic drag in cycling: methods of assessment

Sports Biomechanics, 2011
When cycling on level ground at a speed greater than 14 m/s, aerodynamic drag is the most important resistive force. About 90% of the total mechanical power output is necessary to overcome it. Aerodynamic drag is mainly affected by the effective frontal area which is the product of the projected frontal area and the coefficient of drag.
William M Bertucci, Frédéric Grappe
exaly   +3 more sources

Aerodynamic Drag and Drag Reduction

41st Aerospace Sciences Meeting and Exhibit, 2003
An assessment of the role of fluid dynamic resistance and/or aerodynamic drag and the relationship to energy use in the United States is presented. Existing data indicates that up to 25% of the total energy consumed in the United States is used to overcome aerodynamic drag, 27% of the total energy used in the United States is consumed by transportation
openaire   +1 more source

Reduction of Aerodynamic Drag

1981
Abstract : A study is being made of the effect on aerodynamic drag of boundary layer irradiation by radioactive sources. A blow-down wind tunnel and a skin friction drag balance have been designed and constructed. The balance is of the null-position type, and is operated using an automatic control system to maintain the null position of the drag plate.
J. Clark, W. G. Rees, W. A. Wilby, J. E. Field   +3 more
openaire   +1 more source

Aerodynamic Drag Prediction of Helicopter Fuselage

Journal of Aircraft, 2001
A summary of investigations into predictions of the aerodynamic drag of a modular helicopter fuselage (Eurocopter Dauphin DGV 200) is presented. Drag results are shown for two different configurations, Reynolds numbers up to 6 × 107 (flight conditions), with and without support structure of the wind-tunnel model.
Filippone, A.; id_orcid 0000-0002-6512-6566, Michelsen, J. A.   +1 more
openaire   +1 more source

Damping and Aerodynamic Drag

2021
The effects of damping and/or aerodynamic drag are addressed. We begin with linear damping. Much of the material deals with damped oscillators (mass–spring–dashpot systems), for which three cases are considered: (i) zero forcing, (ii) periodic forcing and (iii) arbitrary forcing. Illustrative examples include a simple test to find out when it's time to
openaire   +1 more source

Aerodynamic Drag of Streamers, Parafoils and Loops

43rd AIAA Aerospace Sciences Meeting and Exhibit, 2005
The drag and flapping characteristics of aerodynamic decelerators in a low speed flow are considered. Streamers, parafoils and loops were investigated. These systems had combinations of areas 0.025 m2, 0.05 m 2, 0.075 m2 and aspect-ratios 3.3, 10, 20, 30. A total of 12 models for each arrangement was tested.
Carruthers, A. C., Filippone, A.; id_orcid 0000-0002-6512-6566   +1 more
openaire   +2 more sources

Aerodynamic of a refrigerated truck and improvement to reduce its aerodynamic drag

Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2022
Despite the fact that improving heavy vehicle fuel efficiency has received considerable attention, few investigations have been done on reducing the aerodynamic drag of a refrigerated truck. This study has two objectives; first, the aerodynamic of the refrigerated truck (REF-BSL) is investigated, and second, passive add-on designs ...
Jeffrey Levin, Shih-Hsiung Chen
openaire   +1 more source

Aerodynamics –Drag

2008
Abstract The aerodynamics of golf balls is an intriguing subject and, as we shall see, it holds several surprises. The most obvious effect of the air on the flight of the ball arises when there is a strong wind. A side wind can turn a shot aimed at the fairway into a search for the ball in the rough grass.
openaire   +1 more source