Eolian saltation on Mars
- Mackinnon, D. J.
- May 1, 1987.
- Physical Description:
- 1 electronic document
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
- A computer model was developed in order to examine the effects of the wind field and surface collisions on the Martian saltation cloud. The distribution of incidence speeds and angles assumed by one grain in this model characterizes reasonably well the quantitative physical processes in the saltation cloud. Saltating grains that transfer small fractions of their horizontal momentum to the surface attain higher speeds, rise higher above the surface, and achieve longer trajectories than do saltating grains that transfer larger amounts of momentum; relatively small differences in the coefficients of restitution yield significant differences in the saltation cloud. It is also shown that grains can both assume long trajectories and transfer large amounts of momentum to the surface for the rapid development of the saltation cloud.
- Other Subject(s):
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19870014022.
Accession ID: 87N23455.
NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1986; p 271-273.
- No Copyright.
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