The role of van der Waals molecules in vibrational relaxation kinetics |
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Authors: | Anatoly A. Vostrikov Sergei G. Mironov |
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Affiliation: | Institute of Thermophysics, Siberian Branch of the USSR Academy of Sciences, Novosibirsk, 630090, USSR |
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Abstract: | The relaxation kinetics of N2O and CO2 vibrationally excited molecules (VEM) in two-phase gas-cluster systems was investigated under conditions of supersonic expansion with condensation. The catalytic effect of clusters on the vibrational relaxation rate was revealed. The relaxation rate of clustered VEM, Rc, and the probability of relaxation of VEM per collision with a cluster, , as functions of the average number of molecules in a cluster, , were obtained. Values of Rc and increase rapidly with increasing , and at = constant they decrease with decreasing cluster temperature. |
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