| Coupled coagulation of aerosol particles at large Knudsen and small Péclet numbers |
| |
| 引用本文： | ZHANG Lianzhong,WEN Jingsong. Coupled coagulation of aerosol particles at large Knudsen and small Péclet numbers[J]. 自然科学进展(英文版), 2001, 11(2): 94-99 |
| |
| 作者姓名： | ZHANG Lianzhong WEN Jingsong |
| |
| 作者单位： | Institute of Physics, Nankai University, Tianjin 300071, China,Institute of Physics, Nankai University, Tianjin 300071, China |
| |
| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No. 49875003) and the Doctoral Programme Foundation of Institution of Higher Education of China. |
| |
| 摘 要： | At large Knudsen number, the medium can be approximated by a molecular system, and the equa tion for the pair-distribution function is then established. When the Péclet number is small, the matched asymptotic ex pansions of singular perturbation theory is used to solve the equation of the pair-distribution function. A third-order ex pansion for the dimensionless coagulation rate (Nusselt number) is thus obtained. Comparison of numeric results of the coagulation rate in a molecular system and that in a continuous medium has shown that the coagulation rate in a molecu lar system is much larger than that in a continuous medium.
|
| 关 键 词： | Knudsen number Péclet number aerosol particle singular perturbation coagulation rate |
Coupled coagulation of aerosol particles at large Knudsen and small Péclet numbers |
| |
| ZHANG Lianzhong,WEN Jingsong. Coupled coagulation of aerosol particles at large Knudsen and small Péclet numbers[J]. Progress in Natural Science, 2001, 11(2): 94-99 |
| |
| Authors: | ZHANG Lianzhong WEN Jingsong |
| |
| Affiliation: | Institute of Physics, Nankai University, Tianjin 300071, China |
| |
| Abstract: | At large Knudsen number, the medium can be approximated by a molecular system, and the equa tion for the pair-distribution function is then established. When the Péclet number is small, the matched asymptotic ex pansions of singular perturbation theory is used to solve the equation of the pair-distribution function. A third-order ex pansion for the dimensionless coagulation rate (Nusselt number) is thus obtained. Comparison of numeric results of the coagulation rate in a molecular system and that in a continuous medium has shown that the coagulation rate in a molecu lar system is much larger than that in a continuous medium. |
| |
| Keywords: | Knudsen number Péclet number aerosol particle singular perturbation coagulation rate |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《自然科学进展(英文版)》浏览原始摘要信息 |
|
点击此处可从《自然科学进展(英文版)》下载免费的PDF全文 |
