Multiple Temperature Model for Near Continuum Flows
文献类型：期刊论文
| 作者 | Xu K; Liu HW; Jiang JZ(蒋建政) |
| 刊名 | JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2007 |
| 卷号 | 21期号:9页码:1376-1382 |
| 通讯作者邮箱 | makxu@ust.hk |
| 关键词 | gas-kinetic model multiple translational temperatures rarefied flow |
| ISSN号 | 1738-494X |
| 产权排序 | Hong Kong Univ Sci & Technol, Dept Math, Kowloon, Peoples R China; Chinese Acad Sci, Inst Mech, Beijing, Peoples R China |
| 通讯作者 | Xu, K (reprint author), Hong Kong Univ Sci & Technol, Dept Math, Kowloon, Peoples R China. |
| 中文摘要 | In the near continuum flow regime, the flow may have different translational temperatures in different directions. It is well known that for increasingly rarefied flow fields, the predictions from continuum formulation, such as the Navier-Stokes equations, lose accuracy. These inaccuracies may be partially due to the single temperature assumption in the Navier-Stokes equations. Here, based on the gas-kinetic Bhatnagar-Gross-Krook (BGK) equation, a multi-translational temperature model is proposed and used in the flow calculations. In order to fix all three translational temperatures, two constraints are additionally proposed to model the energy exchange in different directions. Based on the multiple temperature assumption, the Navier-Stokes relation between the stress and strain is replaced by the temperature relaxation term, and the Navier-Stokes assumption is recovered only in the limiting case when the flow is close to the equilibrium with the same temperature in different directions. In order to validate the current model, both the Couette and Poiseuille flows are studied in the transition flow regime. |
| 类目[WOS] | Engineering, Mechanical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | PLANE POISEUILLE FLOW ; SHOCK STRUCTURE ; KINETIC-THEORY ; GAS-FLOWS ; SIMULATION ; EQUATIONS ; SCHEME |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000249457400008 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/58452]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Xu K,Liu HW,Jiang JZ. Multiple Temperature Model for Near Continuum Flows[J]. JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY,2007,21(9):1376-1382. |
| APA | Xu K,Liu HW,&蒋建政.(2007).Multiple Temperature Model for Near Continuum Flows.JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY,21(9),1376-1382. |
| MLA | Xu K,et al."Multiple Temperature Model for Near Continuum Flows".JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY 21.9(2007):1376-1382. |
入库方式： OAI收割
来源：力学研究所
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