| 引用本文: | 陈伟芳,任兵,吴其芬.气体化学反应速率的 DSMC 方法.[J].国防科技大学学报,1996,18(4):21-26.[点击复制] |
| Chen Weifang,Ren Bin,Wu Qifen.Study on Gaseous Chemical Reaction Rate Using Direct Monte Carlo Simulation Method[J].Journal of National University of Defense Technology,1996,18(4):21-26[点击复制] |
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| 气体化学反应速率的 DSMC 方法 |
| 陈伟芳, 任兵, 吴其芬 |
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(国防科技大学 航天技术系 湖南 长沙 410073)
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| 摘要: |
| 为预报化学反应过程，应用DSMC方法研究了双原子分子的离解反应，讨论了高温情况下(T～Ea/k)采用由实验测定得到的反应速率与气体温度间Arrhenius 经验关系式的可靠性问题，分析了振动热非平衡效应对于离解反应速率的影响，给出了由 DSMC方法得到的离解反应速率与气体温度的关系曲线。 |
| 关键词: 化学反应动力学，稀薄气体, DSMC 方法，热力学非平衡，反应速率 |
| DOI： |
| 投稿日期：1996-03-23 |
| 基金项目:国防预研基金资助项目 |
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| Study on Gaseous Chemical Reaction Rate Using Direct Monte Carlo Simulation Method |
| Chen Weifang, Ren Bin, Wu Qifen |
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(Department of Aerospace Technology, NUDT, Changsha, 410073)
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| Abstract: |
| This paper uses direct Monte Carlo simulation method to predict the process of gaseous chemical reaction. The paper studies the dissociation reaction of gaseous molecules, discusses the reliability of extrapolating chemical reaction rate from lower-temperature region to higher-temperature region through Arrhenius empirical relation-ship obtained by experiments under lower-temperature condition, analyses the effects of
thermal nonequilibrium on chemical reaction rate，and presents the relation between chemical reaction rate and gas temperature obtained through direct Monte Carlo simulation method. |
| Keywords: chemical reaction dynamics, rarefied gas,direct Monte Carlo simulation method,thermal nonequilibrium,chemical reaction rate |
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