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Numerical Simulation of Dust Lifting within Dust Devils-Simulation of an Intense Vortex
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ABSTRACT
Based on an advanced dust devil-scale large-eddy simulation (LES) model, the atmosphere flow of a modeled dust devil in a quasi-steady state was first simulated to illustrate the characteristics of the gas phase field in the mature stage, including the prediction of the lower pressure and higher temperature in the vortex core. The dust-lifting physics is examined in two aspects. Through the experimental data analysis, it is verified again that the horizontal swirling wind can ...
Related newspaper, magazine, and journal articles from HighBeam Research
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A simple thermodynamical theory for dust devils
Journal of the Atmospheric Sciences
; ABSTRACT Based on the heat engine framework, a simple scaling theory for dust devils is proposed and compared to observations. This theory provides a simple physical interpretation for many of the observed characteristics of dust devils. In particular, it predicts the potential intensity and the
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Satanic winds: looking at dust devils on Earth and Mars.
Science News
; How to study a dust devil: Sit in your truck on a dry lake bed and wait for a minitornado to spring up within sight. Eyeball its path and guess where it's headed. Drive to a spot in that direction, shut off the engine, and hope that the vortex sweeps over you and your truckful of instruments. It's
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Towering dust devils discovered on Mars.
Science News
; The most drought-ridden wastes of sub-Saharan Africa are almost verdant compared with the planet Mars, which was completely hiddne from view by a global dust storm when the U.S. Mariner 9 spacecraft arrived there in 1971. Decades before that, astronomers had noted surface changes -- so vast as to
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Doppler Radar Observations of Dust Devils in Texas
Monthly Weather Review
; ABSTRACT Analyses of a dust-devil dataset collected in northwest Texas are presented. The data were collected just above the ground at close range with a mobile, W-band (3-mm wavelength) Doppler radar having an azimuthal (radial) resolution of 3-5 m (30 m) at the range of the dust devils. Most dust
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Just Like N.M., Dust Devils Dance Across the Red Planet
Albuquerque Journal
; * NMSU scientists show that weather on Mars is somewhat like it is here There aren't any tumbleweeds on Mars. Yet. But using a weather station on NASA's Mars Pathfinder lander, a pair of Las Cruces researchers have found dust devils on the Red Planet. NASA has used New Mexico's geology as a
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 "Daily Press (Victorville, CA)")
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Dust devils strike parts of High Desert.
Daily Press (Victorville, CA)
; ... bystanders holding them down. Copyright (c) 2007, Daily Press, Victorville, Calif. Distributed by McClatchy-Tribune Business News. For reprints, email tmsreprints@permissionsgroup.com, call 800-374-7985 or 847-635-6550, send a fax to 847-635-6968, or write ...
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Dust devils produce magnetic fields. (Earth Science).(Brief Article)
Science News
; Scientists who chase dust devils report that the tiny twisters can produce a small magnetic field that changes magnitude between 3 and 30 times per second. When grains of sand and clay collide inside a dust devil, they generate electric charges, says William M. Farrell, a geophysicist at NASA's
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Dust devils can be found swirling in Midwest, Plains, West
The Milwaukee Journal Sentinel
; Another weekend of pleasant weather is settling into Wisconsin, with plenty of sunshine and relatively low humidities. There are chances for a few isolated thunderstorms in northwest Wisconsin, but the rest of the state looks rather dry. June and July are the peak months for tornadoes in Wisconsin,
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Dust Devils produce magnetic fields
Electromagnetic News Report
; According to Science News, scientists who chase dust devils report that the tiny twisters can produce a small magnetic field that changes magnitude three ...
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Yakima Bears's Rally Leaves Dust Devils Spinning -- Williams streaks Yakima past Tri-City
Yakima Herald-Republic
; Strong pitching and timely hitting will keep you in most baseball games. Having your league's fastest player standing on second base when a chance to score on a single arrives takes things to another level. Marland Williams, the Yakima Bears rocket-propelled center fielder scored on Sean Luellwitz'
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