| 稀薄流热化学非平衡DSMC方法模拟中两种位阻因子算法的比较研究 |
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| 引用本文： | 张小斌,谈和平,刘林华,黄勇.稀薄流热化学非平衡DSMC方法模拟中两种位阻因子算法的比较研究[J].工程热物理学报,2002,23(2):221-223. |
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| 作者姓名： | 张小斌 谈和平 刘林华 黄勇 |
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| 作者单位： | 哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨,150001 |
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| 基金项目： | 霍英东基金资助项目（No．71053），教育部高等学校博士学科专项基金资助项目 |
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| 摘 要： | 对化学反应进行模拟的关键是找到准确的化学反应抽样几率及位阻因子．本文对国内外应用较普遍的两种计算复合反应位阻因子的方法，即正、逆反应速率法进行了详细的比较，并用不同的分子对这两种方法分别进行了模拟．最后将模拟结果与理论计算结果进行了比较，发现随着稀薄程度的增加；正反应速率法的模拟结果与理论吻合较好．
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| 关 键 词： | 化学非平衡 DSMC 复合反应 位阻因子 |
| 文章编号： | 0253-231X(2002)02-0221-03 |
| 修稿时间： | 2001年12月21 |
COMPARISON RESEARCH ON TWO STERIC FACTORS OF DSMC IN THERMOCHEMICAL NON-EQUILIBRIUM REACTIONS OF DILUTE GAS FLOW |
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| ZHANG Xiao-Bin, TAN He-Ping, LIU Lin-Hua ,HUANG Yong.COMPARISON RESEARCH ON TWO STERIC FACTORS OF DSMC IN THERMOCHEMICAL NON-EQUILIBRIUM REACTIONS OF DILUTE GAS FLOW[J].Journal of Engineering Thermophysics,2002,23(2):221-223. |
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| Authors: | ZHANG Xiao-Bin TAN He-Ping LIU Lin-Hua HUANG Yong |
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| Abstract: | The key to simulating the chemical reactions is to find the exact chemical reaction probability, i.e. steric factors. This paper analyses two method: the method of forward reaction rate and the method of backward reaction rate, which are all commonly used to calculate the steric factors. These two methods have been applied to modeling two different types of molecular. The results show that the method of forward reaction rate agrees more with theory than the method of backward reaction rate. |
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| Keywords: | chemical non-equilibrium reactions DSMC combined reaction steric factors |
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