Computer Science – Numerical Analysis
Scientific paper
Mar 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28..635i&link_type=abstract
Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 635.
Computer Science
Numerical Analysis
Venus Atmosphere, Titan, Atmospheric Entry, Meteoroids, Cassini Mission, Huygens Probe, Numerical Analysis, Craters, Ice, Hypervelocity Impact
Scientific paper
The preparation for the Cassini-Huygens mission gives an opportunity to revise the problem of an atmospheric entry and breakup of cratering meteoroids. Recently this question was extensively addressed in connection with Venera and Magellan missions to Venus and the Shoemaker-Levy 9 comet impact to Jupiter. We present the numerical modeling of the meteoroids' flight trough the atmosphere in comparison with more simple models. The simulation takes into account the brittle/ductile properties of the meteoroid material: the Grady-Kipp-Melosh model of tensile failure is accompanied by a simple model of the shear failure. For a modern atmosphere of Titan and ice projectiles the observable deficiency of impact craters due to atmospheric shielding would be in the range of 6 to 8 km, where the number of craters would be twice smaller than for the airless Titan.
Basilevsky Alexander T.
Gerhard Neukum
Ivanov Boris A.
Kruchkov V. P.
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