Statistics – Computation
Scientific paper
Jan 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006p%26ss...54...28k&link_type=abstract
Planetary and Space Science, Volume 54, Issue 1, p. 28-44.
Statistics
Computation
10
Scientific paper
Motivated by questions raised by the magnetic properties experiments on the NASA Mars Pathfinder and Mars Exploration Rover (MER) missions, we have studied in detail the capture of airborne magnetic dust by permanent magnets using a computational fluid dynamics (CFD) model supported by laboratory simulations. The magnets studied are identical to the capture magnet and filter magnet on MER, though results are more generally applicable. The dust capture process is found to be dependent upon wind speed, dust magnetization, dust grain size and dust grain mass density. Here we develop an understanding of how these parameters affect dust capture rates and patterns on the magnets and set bounds for these parameters based on MER data and results from the numerical model. This results in a consistent picture of the dust as containing varying amounts of at least two separate components with different physical properties.
Bertelsen Preben
Gunnlaugsson Haraldur P.
Kinch Kjartan M.
Madsen Morten Bo
Merrison Jonathan Peter
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