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arxiv: 1304.4221 · v1 · pith:QBAWNJOHnew · submitted 2013-04-15 · ⚛️ physics.chem-ph

Electron-vibration energy exchange models in nitrogen-containing plasma flows

classification ⚛️ physics.chem-ph
keywords vibrationalrelaxationenergymodelsnitrogen-containingplasmatimeaccuracy
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The physics of vibrational kinetics in nitrogen-containing plasma produced by collisions with electrons is studied on the basis of recently derived cross sections and rate coefficients for the resonant vibrational-excitation by electron-impact. The temporal relaxation of the vibrational energy and of the vibrational distribution function is analyzed in a state-to-state approach. The electron and vibrational temperature are varied in the range of [0,50000] K. Conclusions are drawn with respect to the derivation of reduced models and to the accuracy of a relaxation time formalism. A analytical fit of the vibrational relaxation time is given.

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