Title of article :
Factors affecting the electrification of wind-driven dust studied with laboratory simulations
Author/Authors :
Merrison، نويسنده , , J.P. and Gunnlaugsson، نويسنده , , H.P. and Hogg، نويسنده , , M.R. and Jensen، نويسنده , , M. and Lykke-Andersen، نويسنده , , J.M. and Madsen، نويسنده , , M.Bo and Nielsen، نويسنده , , M.B. and Nّrnberg، نويسنده , , P. and Ottosen، نويسنده , , T.A. and Pedersen، نويسنده , , R.T. and Pedersen، نويسنده , , S. and Sّrensen، نويسنده , , A.V.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
8
From page :
328
To page :
335
Abstract :
The electrification of wind-blown dust grains was studied in a series of laboratory experiments to examine how grain electrification depends on grain size, grain mineralogy, atmospheric composition, atmospheric pressure, and the method of dust dispersal. This work is intended to contribute to a deeper physical understanding of particle electrification on both Mars and Earth. Findings indicate that the amount of electrification per suspended particle generally is independent of dust entrainment process and atmospheric composition. As expected, the electrification process is grain size-dependent, with smaller grains predominantly electrifying negatively. Although there appears to be a weak dependence upon dust mineralogy, this work supports the expectation that dust suspended in the Martian atmosphere will be significantly electrified.
Keywords :
aerosol , Wind , Mars , Electrification , dust
Journal title :
PLANETARY AND SPACE SCIENCE
Serial Year :
2012
Journal title :
PLANETARY AND SPACE SCIENCE
Record number :
2314655
Link To Document :
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