Physics
Scientific paper
Sep 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008epsc.conf..954b&link_type=abstract
European Planetary Science Congress 2008, Proceedings of the conference held 21-25 September, 2008 in Münster, Germany. Online a
Physics
Scientific paper
A meteoric body has great loading during its passage through the atmosphere with a velocity from 11 to 72 km/s. A meteoroid collapses when aerodynamic pressure on a front surface reaches the critical value equals to durability of a body material. Its fragments separate in a transverse direction as a result of interaction of shock waves. Besides, smaller fragments decelerate more than large ones. Thus, there is a separation in a longitudinal direction also. A modelling of two fragments movement in the atmosphere is carried out in this work. Two cases are considered: scattering of two identical fragments in a transverse direction and scattering of two fragments of different radii simultaneously in a longitudinal and transverse direction. Bodies capable to form a crater on the surface of the earth are considered in this work, i.e. large bodies with the big initial velocities are considered.
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