Analytical exact solutions for unsteady collisionless plume flows in a vacuum
文献类型：期刊论文
| 作者 | Cai C; Sun QH(孙泉华) ; Vanderwyst A
|
| 刊名 | Acta Astronautica
 |
| 出版日期 | 2013-10 |
| 卷号 | 91页码:218-227 |
| 通讯作者邮箱 | ccai@nmsu.edu |
| 关键词 | Rarefied jet flows Jets and bursts Collisionless Discharge in vacuum |
| ISSN号 | 0094-5765 |
| 产权排序 | [Cai, C.] New Mexico State Univ, Dept Mech & Aerosp Engn, Las Cruces, NM 88003 USA; [Sun, Q.] Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China |
| 通讯作者 | Cai, C (reprint author), New Mexico State Univ, Dept Mech & Aerosp Engn, Jett Hall 515,1040 S Horseshoe Dr,MSC 3450, Las Cruces, NM 88003 USA. |
| 合作状况 | 国际 |
| 中文摘要 | This paper presents a set of gaskinetic solutions to the problem of unsteady collisionless round plume development: startup and development to a steady flow; steady flow; and shutting down from a steady flow. This can find applications in studying similar transient plume flows from space propulsion devices. Different from many past studies, here we consider the general situation that the average exit gas speed can be larger than zero, and detailed geometry of the nozzle exit radius is included. A fundamental space velocity time relation is adopted in this study and it plays a crucial role to obtain the complete flowfield properties of density, velocity, pressure and temperature. This study reveals that there are some internal complementary relations on density and momentum among these three processes. The results involve complex integrations involving factors of time, geometry, and specific speed ratio. Several numerical simulations with the direct simulation Monte Carlo method validate these analytical exact results. |
| 学科主题 | 稀薄气体力学 |
| 分类号 | 二类 |
| 收录类别 | SCI ; EI |
| 资助信息 | New Mexico Space Grant; [NSF-DMS-0914706]; [NSF-CBET-0854411] |
| 原文出处 | http://dx.doi.org/10.1016/j.actaastro.2013.06.019 |
| 语种 | 英语 |
| WOS记录号 | WOS:000323585800025 |
| 公开日期 | 2013-09-27 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/47446]  |
| 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 | Cai C,Sun QH,Vanderwyst A. Analytical exact solutions for unsteady collisionless plume flows in a vacuum[J]. Acta Astronautica,2013,91:218-227. |
| APA | Cai C,孙泉华,&Vanderwyst A.(2013).Analytical exact solutions for unsteady collisionless plume flows in a vacuum.Acta Astronautica,91,218-227. |
| MLA | Cai C,et al."Analytical exact solutions for unsteady collisionless plume flows in a vacuum".Acta Astronautica 91(2013):218-227. |
入库方式： OAI收割
来源：力学研究所
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