Physics
Scientific paper
Nov 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975icar...26..321i&link_type=abstract
Icarus, vol. 26, Nov. 1975, p. 321-331. Research supported by the Iowa State University of Science and Technology and NASA.
Physics
4
Craters, Erosion, Mars Surface, Similitude Law, Wind Effects, Wind Tunnel Tests, Atmospheric Boundary Layer, Environment Simulation, Mars Photographs, Vortices
Scientific paper
A similitude parameter is derived which is based on theoretical considerations of erosion due to sand in saltation. This parameter has been used to correlate wind tunnel experiments of particle flow over model craters. The characteristics of the flow field in the vicinity and downstream of a crater are discussed and it is shown that erosion is initiated in areas lying under a pair of trailing vortices. The erosion rate parameter is used to calculate erosion rates on Mars, reported in Part 2, to be published later.
Greeley Ronald
Iversen James D.
Pollack James B.
White Roscoe B.
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