Modelling roll waves with shallow water equations and turbulent closure
文献类型：期刊论文
| 作者 | Cao ZX ; Hu PH; Hu KH; Pender G; Liu QQ(刘青泉)
|
| 刊名 | Journal of Hydraulic Research
 |
| 出版日期 | 2015 |
| 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 |
| 合作状况 | 国内 |
| 中文摘要 | A physically enhanced model is proposed for roll waves based on the shallow water equations and k−ϵ 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. |
| 分类号 | 二类/Q1 |
| 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 ; EI |
| 原文出处 | http://dx.doi.org/10.1080/00221686.2014.950350 |
| 语种 | 英语 |
| WOS记录号 | WOS:000354124600002 |
| 公开日期 | 2014-12-25 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/49405]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 推荐引用方式 GB/T 7714 | Cao ZX,Hu PH,Hu KH,et al. Modelling roll waves with shallow water equations and turbulent closure[J]. Journal of Hydraulic Research,2015,53(2):161-177. |
| APA | Cao ZX,Hu PH,Hu KH,Pender G,&Liu QQ.(2015).Modelling roll waves with shallow water equations and turbulent closure.Journal of Hydraulic Research,53(2),161-177. |
| MLA | Cao ZX,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：力学研究所
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