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Your search keyword '"VORTEX motion"' showing total 7 results
Start Over Descriptor "VORTEX motion" Publication Year Range More than 50 years ago
7 results on '"VORTEX motion"'

1. VORTEXES IN AIRCRAFT WAKES.

Author

Chigier, Norman A.

Subjects
VORTEX motion, AIRCRAFT carriers, AIRCRAFT accidents
Abstract

Discusses the phenomenon of wing-trailing vortexes in aircraft wakes. Examples of jumbo jets such as the Boeing 747, the Locklead C-5A and the McDonnell Douglas DC-10 that may cause vortex air turbulence; Association of fatal crashes with the vortex wakes of aircraft; Recommendation posed by the U.S. National Transportation Safety Board to the U.S. Federal Aviation Administration regarding the issue.

Published
1974
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2. THE AMATEUR SCIENTIST.

Author

Stong, C. L.

Subjects
VORTEX motion, EDDIES, MOTION, FLUID dynamics
Abstract

The article cites ways on how to make and investigate vortexes in water and flame in relation to their intensity and direction of rotation, in reference to a research made by Robert A. Singer for a Junior Research Fellowship under Shaefer at the Atmospheric Sciences Research Center. The first requirement of an apparatus designed for experimenting with vortexes is a means of imparting rotary motion to a fluid. The direction of rotation is determined by the sense of eddy rotation.

Published
1963
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3. 2. OPEN-END SPINNING.

Author

Smith, P. A.

Subjects
SPINNING (Textiles), FIBERS, YARN, VORTEX motion, FLUID dynamics, AIR, TEXTILE industry, MANUFACTURING processes, TEXTILES
Abstract

The section of "Yarn Production and Properties," presents information regarding the methods of open-end spinning. It is stated that open-end spinning systems are classified in several groups in which the first group includes all devices where all fibres are assembled and twist is given to the end of the yarn by a fluid vortex. In the second group systems, fibres are transported in a fluid medium like air, and they are then assembled along the axis of a mechanical twisting element. Fibres are not separated completely in group 3 systems but in place of that, tufts of fibre taken from roving are overlapped onto the surface of a rapidly rotating roller. For the process of feeding, there are two basic methods.

Published
1969

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