Exact solutions to collisionless external gas flows
文献类型：会议论文
| 作者 | Sun QH(孙泉华)
|
| 出版日期 | 2009-12-28 |
| 会议名称 | The Second International Symposium on Computational Mechanics in conjunction with The Twelfth International Conference on the Enhancement and Promotion of Computational Methods in Engineering and Science |
| 会议日期 | 2009-11 |
| 会议地点 | Hong Kong and Macau |
| 通讯作者邮箱 | ccai@nmsu.edu |
| 通讯作者 | Cai C |
| 中文摘要 | This paper presents exact density, velocity and temperature solutions for two problems of collisionless gas flows around a flat plate or a spherical object. At any point off the object, the local velocity distribution function consists of two pieces of Maxwellian distributions: one for the free stream which is characterized by free stream density, temperature and average velocity, n0, T0, U0; and the other is for the wall and it is characterized by density at wall and wall temperature, nw,Tw. Directly integrating the distribution functions leads to complex but exact flowfield solutions. To validate these solutions, we perform numerical simulations with the direct simulation Monte Carlo (DSMC) method. In general, the analytical and numerical results are virtually identical. The evaluation of these analytical solutions only requires less than one minute while the DSMC simulations require several days. |
| 收录类别 | 其他 |
| 合作状况 | 国际 |
| 会议录 | The Second International Symposium on Computational Mechanics in conjunction with The Twelfth International Conference on the Enhancement and Promotion of Computational Methods in Engineering and Science.Hong Kong and Macau.2009-11.
 |
| 学科主题 | 流体力学 |
| 语种 | 中文 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/32990]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Sun QH. Exact solutions to collisionless external gas flows[C]. 见:The Second International Symposium on Computational Mechanics in conjunction with The Twelfth International Conference on the Enhancement and Promotion of Computational Methods in Engineering and Science. Hong Kong and Macau. 2009-11. |
入库方式： OAI收割
来源：力学研究所
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