Nonequilibrium Characteristics of Nitrogen Plasmas Appropriate to an AOTV Flight
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Nonequilibrium electronic excitations and deexcitations in nitrogen plasmas appropriate to an AOTV flight are studied theoretically. From the given nonequilibrium thermodynamic state variables behind a strong shock wave, the number densities of internal states of a nitrogen atom, nitrogen molecule and nitrogen ionic molecule are calculated by using the collisional and radiative process theory, in which the effects of heavy particle impacts are included. Based on the results of the nonequilibrium population distributions at various electronic states of each species, emission and absorption characteristics of the plasmas are calculated.
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