THE MODELING OF BOLIDE TERMINAL EXPLOSIONS |
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| Authors: | G A Tirskiy DYu Khanukaeva |
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| Institution: | (1) Institute of Mechanics, Moscow State M.V. Lomonosov University, Michurinskiy-1, 119192 Moscow, Russia |
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| Abstract: | The phenomenon of terminal thermal explosions of bolides is considered and mathematically modeled, using the mechanisms of
ablation and fragmentation due to mechanical and thermal stresses. The definition and criterion of thermal explosions are
given. An analytical solution is obtained for the model of ablating and mechanically fragmenting meteoroid motion in the atmosphere.
Numerical calculations including the terminal stage of the motion are fulfilled for the Tunguska parameters. They demonstrated
a very rapid energy loss, corresponding to the terminal flare and full mass loss, explaining the absence meteorites. |
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| Keywords: | bolides fragmentation meteorites meteoroids terminal flares thermal explosion |
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