Mathematics – Logic
Scientific paper
May 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agusm.p33b..01f&link_type=abstract
American Geophysical Union, Spring Meeting 2004, abstract #P33B-01
Mathematics
Logic
5409 Atmospheres: Structure And Dynamics, 5494 Instruments And Techniques, 6225 Mars
Scientific paper
It is known that dust devils generate large electric fields via tribo-electricity (contact electrification between mixing grains). By analogy, it is anticipated that the larger dust devils on Mars will also generate electric fields. In this work, we present an analytical argument for the generation of these field, starting with the basic fluid processes in the dust devil that account for grain lifting and the microscopic grain-grain tribo-charging processes through to the development of the electric field based on current flow in the dust devil. With this model, we can then predict the anticipated large scale electric fields based upon macroscopic meteorological parameters.
Delory Gregory T.
Farrell William M.
Renno Nilton O.
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