| 引用本文: | 陈伟芳,石于中,吴其芬.气体分子碰撞传能及反应的DSMC 仿真.[J].国防科技大学学报,1996,18(2):5-8.[点击复制] |
| Chen Weifang,Shi Yuzhong,Wu Qifen.DSMC Simulation of the Molecular Energy Transfer and Reaction by Collision[J].Journal of National University of Defense Technology,1996,18(2):5-8[点击复制] |
|
| |
|
|
| 本文已被：浏览 6110次 下载 6215次 |
| 气体分子碰撞传能及反应的DSMC 仿真 |
| 陈伟芳, 石于中, 吴其芬 |
|
(国防科技大学 航天技术系 湖南 长沙 410073)
|
| 摘要: |
| 研究了气体分子的非弹性碰撞机理，给出了分子内自由度激发、反应的几率选择模式及分子内自由度能量交换模式。以钝体驻点线流场为仿真实例，比较了DSMC仿真结果与粘性激波层方程计算结果。二者在较低高度时的一致表明DSMC仿真中采用的模式是合理的。 |
| 关键词: 分子碰撞传能，化学反应，热化学非平衡效应，DSMC 仿真，高超声速稀薄气体流动 |
| DOI： |
| 投稿日期：1995-09-27 |
| 基金项目: |
|
| DSMC Simulation of the Molecular Energy Transfer and Reaction by Collision |
| Chen Weifang, Shi Yuzhong, Wu Qifen |
|
(Department of Aerospace Technology，NUDT，Changsha，410073)
|
| Abstract: |
| This paper deals with the mechanism of molecular in elastic collision，presents the probability selective models of molecular internal excitation and molecular reactions，and introduces the energy transfer models among translational energy，rotational energy and vibrational energy. The results of the stagnation streamline flow of a hypersonic blunt body obtained by DSMC method conform with the results obtained by viscous shock layer (VSL) equation method at the lower altitude，which shows that models used in the DSMC simulation are appropriate. |
| Keywords: molecular energy transfer,chemical reaction,thermochemical nonequilibrium effects,DSMC simulation,hypersonic rarefied gas flow |
|
|
