Nowakowski B, Lemarchand A
Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
J Chem Phys. 2007 Nov 7;127(17):174712. doi: 10.1063/1.2799983.
We study the propagation of an exothermic chemical wave front in a reactive dilute gas and show that the particle velocity distribution departs from the Maxwellian form in the front zone. The analytical corrections to the balance equations for concentrations, temperature, and stream velocity induced by the departure from local equilibrium are derived from a perturbative solution of the Boltzmann equation. Our analytical predictions of the front properties, including its propagation speed, compare well with microscopic simulations of the particle dynamics.
我们研究了反应性稀薄气体中放热化学波前的传播，并表明在波前区域粒子速度分布偏离了麦克斯韦分布形式。由偏离局部平衡引起的浓度、温度和流速平衡方程的解析修正，是从玻尔兹曼方程的微扰解推导出来的。我们对波前特性（包括其传播速度）的解析预测与粒子动力学的微观模拟结果吻合良好。
