The influence of oxygen degree of dissociation on kinetic characteristics of electrons in air discharge
Based on solving of Boltzmann equation for energy of electrons in air at various degree of O2 dissociation the dependences of electron collision rate constants were obtained. Rate constants are expressed in simple and handy form for kinetic calculations as a fudge factor for rate constants KX=0 for zero degree of O2 dissociation: K( E/N, X) = KX=0( E/N, X) x γ( E/N, X), where γ is the factor, which depends on degree of oxygen dissociation. It was shown that during increasing of reaction energy threshold the significance of dissociation influence increases too and for the processes of ionization KX can increases up to order of value and bigger.
На основе численного решения уравнения Больцмана для энергии электронов в воздухе с различными степенями диссоциации O2 получены зависимости констант скорости электронно-столкновительных процессов, которые выражаются в простом и удобном для проведения кинетических расчетов виде поправочного множителя к константам KX=0 при нулевой диссоциации O2 K( E/N, X) = KX=0( E/N, X) x γ( E/N, X), где γ поправочный коэффициент, учитывающий степень диссоциации X кислорода. Показано, что с увеличением энергетического порога влияние диссоциации возрастает и для процессов ионизации может приводить к увеличению KX на порядок и более величины.
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