| 题名 | Moisture transfer by turbulent natural convection |
| 作者 | |
| 通讯作者 | Xia, Ke-Qing |
| 发表日期 | 2019-09-10
|
| DOI | |
| 发表期刊 | |
| ISSN | 0022-1120
|
| EISSN | 1469-7645
|
| 卷号 | 874页码:1041-1056 |
| 摘要 | We present an experimental and numerical study of natural convection with moist air as convecting fluid. By simplifying the system as two-component convection, an experimental method is proposed for indirectly measuring the moisture transfer rates in buoyancy-driven flows. We verify the results using direct numerical simulations. It is found that the non-dimensionalized transfer rates for both sensible heat (Nu(T)) and water vapour (Nu(e)) are essentially determined by a generalized Grashof number Gr (the ratio of combined buoyancy generated by the imposed temperature and vapour pressure gradients to viscous force), and are only weakly dependent on the buoyancy ratio Lambda (the ratio of buoyancy induced by temperature variation to that due to vapour pressure variation). Moreover, we show that the full set of control parameters {Gr, Lambda, Pr, Sc} is more suitable than other choices for characterizing the two-component system under investigation. As a special case, the Schmidt number dependence for passive scalar transport rates in buoyancy-driven flows is also deduced. |
| 关键词 | |
| 相关链接 | [来源记录] |
| 收录类别 | |
| 语种 | 英语
|
| 学校署名 | 通讯
|
| 资助项目 | Research Grants Council of HKSAR[CUHK14301115]
; Research Grants Council of HKSAR[14302317]
|
| WOS研究方向 | Mechanics
; Physics
|
| WOS类目 | Mechanics
; Physics, Fluids & Plasmas
|
| WOS记录号 | WOS:000475631800001
|
| 出版者 | |
| EI入藏号 | 20194207535567
|
| EI主题词 | Air
; Moisture control
; Natural convection
|
| EI分类号 | Heat Transfer:641.2
; Specific Variables Control:731.3
; Chemical Products Generally:804
; Physical Properties of Gases, Liquids and Solids:931.2
|
| ESI学科分类 | ENGINEERING
|
| 来源库 | Web of Science
|
| 引用统计 |
被引频次[WOS]：8
|
| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/25196 |
| 专题 | 工学院_力学与航空航天工程系 |
| 作者单位 | 1.Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China 2.Southern Univ Sci & Technol, Ctr Complex Flows & Soft Matter Res, Shenzhen 518055, Peoples R China 3.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China |
| 第一作者单位 | 南方科技大学; 力学与航空航天工程系 |
| 通讯作者单位 | 南方科技大学; 力学与航空航天工程系 |
| 推荐引用方式 GB/T 7714 |
Zhang, Lu,Chong, Kai Leong,Xia, Ke-Qing. Moisture transfer by turbulent natural convection[J]. JOURNAL OF FLUID MECHANICS,2019,874:1041-1056.
|
| APA |
Zhang, Lu,Chong, Kai Leong,&Xia, Ke-Qing.(2019).Moisture transfer by turbulent natural convection.JOURNAL OF FLUID MECHANICS,874,1041-1056.
|
| MLA |
Zhang, Lu,et al."Moisture transfer by turbulent natural convection".JOURNAL OF FLUID MECHANICS 874(2019):1041-1056.
|
| 条目包含的文件 | 条目无相关文件。 | |||||
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