| DOI: | 10.1007/s11069-020-04479-7
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| 论文题名: | Impact of downstream lakes on dam break wave attenuation |
| 作者: | Fan J.; Motamedi A.; Galoie M.
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| 刊名: | Natural Hazards
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| ISSN: | 0921030X
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| 出版年: | 2021
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| 卷: | 106, 期:1 | | 起始页码: | 595
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| 结束页码: | 612
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| 语种: | 英语
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| 中文关键词: | Dam break
; Downstream lake
; Finite volume method
; Flood wave attenuation
; HLLC Riemann’s solver technique
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| 英文关键词: | channel flow
; computer simulation
; dam failure
; finite volume method
; flood wave
; flow field
; lake water
; numerical model
; reservoir
; wave attenuation
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| 英文摘要: | In this study, the effect of downstream lakes or ponds on dam break flow was investigated. To do this, a robust finite volume method with Harten-Lax-van Leer contact surface Riemann’s solver technique for flux evaluation has been used. For space discretization, a triangular mesh grid was used and a complete software with mesh generator was developed. A reservoir with a long downstream channel was assumed, and many scenarios such as a single lake with various lengths, widths and positions along the channel and multiple consecutive lakes as symmetric and non-symmetric with respect to the channel centerline were considered. The numerical modeling of dam break flow along the channel showed that the downstream lake can decrease the speed and depth of the dam break wave front and the amount of this wave attenuation was very dependent on the storage volume of the lake and vortexes which were established in the lake. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/169014
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| Appears in Collections: | 气候变化与战略
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作者单位: | Institute of Mountain Hazards and Environment, CAS, No. 9, Section 4, Renminnanlu Road, Chengdu, Sichuan 610041, China; Civil Engineering Department, Technical University of Buein Zahra, Imam Khomeini Blvd, Buein Zahra, Qazvin, 3451745346, Iran; Civil Engineering Department, Faculty of Technical and Engineering, Imam Khomeini International University, Qazvin, 34148-96818, Iran
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| Recommended Citation: | |
Fan J.,Motamedi A.,Galoie M.. Impact of downstream lakes on dam break wave attenuation[J]. Natural Hazards,2021-01-01,106(1)
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