Results 251 to 260 of about 3,078,462 (291)

Ship Drag Reduction by Air Cavities

2014
Mechanical, Maritime and Materials ...
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Air-drag and the Equilibrium of Whirling Threads

Nature, 1937
IN the absence of all resistance to motion and assuming perfect flexibility, the differential equations of motion for a thread which carries a small spherical 'bob' and is whirled rapidly about a vertical axis by a horizontal arm give us an approximate solution for small amplitudes a plane sine wave—with reference to moving axes—leading to the well ...
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Drag-Quick Program Tool for Calculations of the Air Drag Force on a 1U-CubeSat

2018 IEEE International Conference on Automation/XXIII Congress of the Chilean Association of Automatic Control (ICA-ACCA), 2018
This paper presents a numerical simulation of the air drag force that small spacecraft, specifically a CubeSat, is experimenting during its mission on space. According to air drag force equation, it depends mostly on the air density values and its current speed, other parameters are considered constant due to environment conditions.
Guillermo Wenceslao Zarate Segura, Avid Roman-Gonzalez   +1 more
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Heuristic model of air drag on a sphere

Physics Education, 2004
A derivation of the drag coefficient for a sphere moving through air using a simple model employed by Newton is presented here. Assuming the air molecules are noninteracting and that they have elastic collisions with the sphere, the drag coefficient is Cd = 2.
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Cushion drag of air cushion vehicles.

1967
This item was digitized as part of a project to share McGill's intellectual legacy with the public. If you are the copyright holder or a relative of the copyright holder who is deceased, you may request withdrawal by emailing escholarship.library@mcgill.ca.
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Modeling air drag

The Physics Teacher, 1994
Christopher Brueningsen, Jason Marinelli, Peter Pappano, Kenneth Wallace   +3 more
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Government is accused of “dragging its feet” on air pollution

BMJ, 2018
The UK government must move more quickly to cut vehicle emissions to tackle air pollution and improve the nation’s health, a cross party group of MPs has said. In March a critical joint committee report1 (Environment, Food and Rural Affairs; Environmental Audit; Health and Social Care; and Transport) said that the government had failed to protect the ...
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The effect of air-drag on the descent of bodies

1995
Abstract In Propositions XV and XVI, Newton formulates a problem on the effect of air-drag on the descent of bodies under centripetal attraction. As a prelude to Newton’s method of solution, we shall state the problem simply and provide the solution as one might today.
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Experimental and Numerical Studies on the Air-Injection Drag Reduction of the Ship Model

Ocean Engineering, 2022
Xiaojie Zhao
exaly  

Air drag effect on gradiometer measurements

manuscripta geodaetica, 1991
P. Touboul, A. Bernard, F. Barlier, C. Berger   +3 more
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