Vol. 17, issue 09, article # 7Morokov Yu.N., Klimova E.G., Rivin G.S., Borodulin A.I., Desyatkov B.M., Sarmanaev S.P., Zykov S.V. Modeling of the ground surface pollution with propellants. // Atmospheric and oceanic optics. 2004. V. 17. No. 09. P. 686-689.
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The fall of the UDMH (unsymmetrical dimethylhydrazine) drops that are formed upon flowing-out of residual propellant from a rocket stage is considered. It is supposed that the propellant can flow out either discretely (at a single point) or continuously along the stage descent trajectory. The initial process of drop formation and the interactions among the falling UDMH drops are not considered. The drop fall trajectories and the final distribution of the UDMH mass precipitated on the earth's surface are calculated using real meteorological data.