| 题名 | Analysis of unsteady flow effects on the Betz limit for flapping foil power generation |
| 作者 | |
| 通讯作者 | Young, John |
| 发表日期 | 2020-11-10
|
| DOI | |
| 发表期刊 | |
| ISSN | 0022-1120
|
| EISSN | 1469-7645
|
| 卷号 | 902 |
| 摘要 | A control volume based analytical method for calculating the efficiency. of flapping foil power generators was developed for single and tandem foil configurations. Ignoring unsteady effects and non-uniform pressures resulted in theoretical limits identical to the Betz (eta = 16/27 for a single turbine) and Newman (eta = 16/25 for tandem turbines) limits. Inclusion of unsteady flow and non-uniform pressure distributions produced theoretical efficiency maxima in excess of these limits. Simulation of single and tandem foil cases to determine the magnitude of these effects showed that the Betz limit would not be exceeded by a single foil system in practice, but that it is conceivable that a tandem foil system could exceed the Newman limit due to the strong unsteady vortex wake of the upstream turbine entraining additional energy into the path of the downstream turbine and maintaining pressures in the wake below ambient. |
| 关键词 | |
| 相关链接 | [来源记录] |
| 收录类别 | |
| 语种 | 英语
|
| 学校署名 | 其他
|
| 资助项目 | Australian Research Council["DE160101098","DP130103850"]
|
| WOS研究方向 | Mechanics
; Physics
|
| WOS类目 | Mechanics
; Physics, Fluids & Plasmas
|
| WOS记录号 | WOS:000619424200004
|
| 出版者 | |
| EI入藏号 | 20222012116580
|
| EI主题词 | Turbines
; Unsteady flow
; Vortex flow
|
| EI分类号 | Fluid Flow, General:631.1
|
| ESI学科分类 | ENGINEERING
|
| 来源库 | Web of Science
|
| 引用统计 |
被引频次[WOS]：20
|
| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/221175 |
| 专题 | 工学院_海洋科学与工程系 |
| 作者单位 | 1.Univ New South Wales Canberra, Sch Engn & Informat Technol, Canberra, ACT 2600, Australia 2.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen 518055, Peoples R China 3.Curtin Univ, Sch Civil & Mech Engn, Bentley, WA 6102, Australia |
| 推荐引用方式 GB/T 7714 |
Young, John,Tian, Fang-Bao,Liu, Zhengliang,et al. Analysis of unsteady flow effects on the Betz limit for flapping foil power generation[J]. JOURNAL OF FLUID MECHANICS,2020,902.
|
| APA |
Young, John,Tian, Fang-Bao,Liu, Zhengliang,Lai, Joseph C. S.,Nadim, Nima,&Lucey, Anthony D..(2020).Analysis of unsteady flow effects on the Betz limit for flapping foil power generation.JOURNAL OF FLUID MECHANICS,902.
|
| MLA |
Young, John,et al."Analysis of unsteady flow effects on the Betz limit for flapping foil power generation".JOURNAL OF FLUID MECHANICS 902(2020).
|
| 条目包含的文件 | 条目无相关文件。 | |||||
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