Modelling roll waves with shallow water equations and turbulent closure
文献类型：期刊论文
| 作者 | Cao, Zhixian1,2; Hu, Penghui1; Hu, Kaiheng3 ; Pender, Gareth2; Liu, Qingquan4
|
| 刊名 | JOURNAL OF HYDRAULIC RESEARCH
 |
| 出版日期 | 2015-03-04 |
| 卷号 | 53期号:2页码:161-177 |
| 关键词 | turbulent Reynolds stress natural roll waves shallow water equations periodic permanent roll waves k-epsilon turbulence model |
| ISSN号 | 0022-1686 |
| 通讯作者 | Cao, Zhixian |
| 英文摘要 | A physically enhanced model is proposed for roll waves based on the shallow water equations and k-epsilon turbulence closure along with a modification component. It is tested against measured data on periodic permanent roll waves, and the impact of turbulence is demonstrated to be essential. It is revealed that a regular inlet perturbation may lead to periodic permanent or natural roll waves, when its period is shorter or longer than a critical value inherent to a specified normal flow. While a larger amplitude or shorter period of a regular inlet perturbation is conducive to the formation of periodic permanent roll waves, their period remains the same as that of the perturbation, while their amplitude increases with the perturbation period and is independent of the perturbation amplitude. An irregular inlet perturbation favours the formation of natural roll waves, so does a larger amplitude of the perturbation. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Engineering, Civil ; Water Resources |
| 研究领域[WOS] | Engineering ; Water Resources |
| 关键词[WOS] | INCLINED PLANE ; OPEN CHANNELS ; FLOW ; SIMULATION ; EVOLUTION ; DYNAMICS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000354124600002 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/10011]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China 2.Heriot Watt Univ, Inst Infrastruct & Environm, Edinburgh, Midlothian, Scotland 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China 4.Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Zhixian,Hu, Penghui,Hu, Kaiheng,et al. Modelling roll waves with shallow water equations and turbulent closure[J]. JOURNAL OF HYDRAULIC RESEARCH,2015,53(2):161-177. |
| APA | Cao, Zhixian,Hu, Penghui,Hu, Kaiheng,Pender, Gareth,&Liu, Qingquan.(2015).Modelling roll waves with shallow water equations and turbulent closure.JOURNAL OF HYDRAULIC RESEARCH,53(2),161-177. |
| MLA | Cao, Zhixian,et al."Modelling roll waves with shallow water equations and turbulent closure".JOURNAL OF HYDRAULIC RESEARCH 53.2(2015):161-177. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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