Article(id=1223196812853493893, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223196803663778281, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20222154, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1665849600000, receivedDateStr=2022-10-16, revisedDate=1667664000000, revisedDateStr=2022-11-06, acceptedDate=null, acceptedDateStr=null, onlineDate=1769562446082, onlineDateStr=2026-01-28, pubDate=1692892800000, pubDateStr=2023-08-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769562446082, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769562446082, creator=13701087609, updateTime=1769562446082, updator=13701087609, issue=Issue{id=1223196803663778281, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='8', pageStart='1', pageEnd='222', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769562443888, creator=13701087609, updateTime=1769563793740, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223202465391166440, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223196803663778281, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223202465391166441, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223196803663778281, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=139, endPage=142, ext={EN=ArticleExt(id=1223196814946451713, articleId=1223196812853493893, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Numerical Simulation of Falling-sill Dissipation Characteristics of Terminal Drainage Outlets in Mountainous Cities, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

When the source-based reduction facilities cannot be carried out during the construction of sponge city, the stormwater control measures (SCM) are usually set up at the terminal drainage outlets to achieve the goal of runoff control and pollutant reduction. Because there is usually large drop between the drainage outlet and the waterfront zone in mountain city, resulting in a high flow rate of water from the drainage outlets, it is easy to cause strong hydraulic erosion to the SCM and may adversely affect their normal operation. Based on the falling-sill dissipation facility installed according to the high drop topographic features of drainage outlets in Chongqing urban, the numerical model with FULENT software was constructed to simulate the hydraulic process of different energy dissipation configurations in this study. The results show that the solid-baffle typed falling-sill dissipation facility has out-performance energy dissipation, and the energy dissipation rate was as high as 90%, and the outlet velocity of the end of facilities was irrelevant to the inlet flow, while only related to single drop height. The higher the single drop height, the water flow was susceptible to form a hydraulic vortex in the backwater area of falling-sill under the influence of potential energy, which can lead the greatest extent of turbulence kinetic energy dissipation, and finally result in a gradual decrease of the maximum pressure of water flow in the horizontal direction to achieve the targeted hydraulic energy dissipation.

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海绵城市建设过程中无法进行源头式减排时,通常在排水管末端区域设置公共雨洪控制设施(SCM)进行兜底,实现径流控制和污染物削减目标。由于山地城市排水口与水岸区域落差大,导致排水管出水流速高,易对SCM造成强烈的水力冲刷而影响设施的正常运行。基于重庆市主城排水口高落差地形特征设置的跌坎消能设施,采用FLUENT软件构建的数值模型对不同消能构型进行了水力过程模拟。结果表明,实心挡板跌坎消能设施(BD2)的消能率高达90%以上,且末端出水流速与进水流量无关,仅与单级跌坎高度有关;单级跌坎高度越高,水流受势能影响易在跌坎回水区形成水力涡流,并造成流速场在矢量方向上发生显著变化,使能量发生最大程度紊动耗散,最终导致水流在水平方向上的最大压强沿程降低而达到水力消能效果。

, correspAuthors=null, authorNote=null, correspAuthorsNote=
陈垚(1983-),男,博士、教授,研究方向为水污染防控与城市雨洪管理,E-mail:
, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=uA3mwxzHmyy/X8yC7x1/PQ==, magXml=+zPC/2scS25ZtQn++tQRpg==, pdfUrl=null, pdf=cNZC9S4SuLoWCtm/Jvnx1A==, pdfFileSize=2188108, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=CBxQJ/eysa6TF6juhBphlA==, mapNumber=null, authorCompany=null, fund=null, authors=

毛钧(1997-),男,硕士研究生,研究方向为城市雨洪管理,E-mail:

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毛钧(1997-),男,硕士研究生,研究方向为城市雨洪管理,E-mail:

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毛钧(1997-),男,硕士研究生,研究方向为城市雨洪管理,E-mail:

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山地城市末端排水口跌水消能特性数值模拟研究
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毛钧 1 , 黄恒粤 1 , 陈垚 1 , 刘非 1 , 袁绍春 1 , 甘春娟 2
水电能源科学 | 水利水电工程 2023,41(8): 139-142
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水电能源科学 | 水利水电工程 2023, 41(8): 139-142
山地城市末端排水口跌水消能特性数值模拟研究
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毛钧1 , 黄恒粤1, 陈垚1 , 刘非1, 袁绍春1, 甘春娟2
作者信息
  • 1.重庆交通大学河海学院,重庆 400074
  • 2.重庆市市政设计研究院有限公司,重庆 400012
  • 毛钧(1997-),男,硕士研究生,研究方向为城市雨洪管理,E-mail:

通讯作者:

陈垚(1983-),男,博士、教授,研究方向为水污染防控与城市雨洪管理,E-mail:
Numerical Simulation of Falling-sill Dissipation Characteristics of Terminal Drainage Outlets in Mountainous Cities
Jun MAO1 , Heng-yue HUANG1, Yao CHEN1 , Fei LIU1, Shao-chun YUAN1, Chun-juan GAN2
Affiliations
  • 1.School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, China
  • 2.Chongqing Municipal Research Institute of Design Co., Ltd., Chongqing 400012, China
出版时间: 2023-08-25 doi: 10.20040/j.cnki.1000-7709.2023.20222154
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海绵城市建设过程中无法进行源头式减排时,通常在排水管末端区域设置公共雨洪控制设施(SCM)进行兜底,实现径流控制和污染物削减目标。由于山地城市排水口与水岸区域落差大,导致排水管出水流速高,易对SCM造成强烈的水力冲刷而影响设施的正常运行。基于重庆市主城排水口高落差地形特征设置的跌坎消能设施,采用FLUENT软件构建的数值模型对不同消能构型进行了水力过程模拟。结果表明,实心挡板跌坎消能设施(BD2)的消能率高达90%以上,且末端出水流速与进水流量无关,仅与单级跌坎高度有关;单级跌坎高度越高,水流受势能影响易在跌坎回水区形成水力涡流,并造成流速场在矢量方向上发生显著变化,使能量发生最大程度紊动耗散,最终导致水流在水平方向上的最大压强沿程降低而达到水力消能效果。

雨洪控制设施  /  跌水消能  /  消能构型  /  消能率  /  数值模拟

When the source-based reduction facilities cannot be carried out during the construction of sponge city, the stormwater control measures (SCM) are usually set up at the terminal drainage outlets to achieve the goal of runoff control and pollutant reduction. Because there is usually large drop between the drainage outlet and the waterfront zone in mountain city, resulting in a high flow rate of water from the drainage outlets, it is easy to cause strong hydraulic erosion to the SCM and may adversely affect their normal operation. Based on the falling-sill dissipation facility installed according to the high drop topographic features of drainage outlets in Chongqing urban, the numerical model with FULENT software was constructed to simulate the hydraulic process of different energy dissipation configurations in this study. The results show that the solid-baffle typed falling-sill dissipation facility has out-performance energy dissipation, and the energy dissipation rate was as high as 90%, and the outlet velocity of the end of facilities was irrelevant to the inlet flow, while only related to single drop height. The higher the single drop height, the water flow was susceptible to form a hydraulic vortex in the backwater area of falling-sill under the influence of potential energy, which can lead the greatest extent of turbulence kinetic energy dissipation, and finally result in a gradual decrease of the maximum pressure of water flow in the horizontal direction to achieve the targeted hydraulic energy dissipation.

stormwater control measures  /  falling-sill dissipation  /  dissipation configuration  /  energy dissipation rate  /  numerical simulation
毛钧, 黄恒粤, 陈垚, 刘非, 袁绍春, 甘春娟. 山地城市末端排水口跌水消能特性数值模拟研究. 水电能源科学, 2023 , 41 (8) : 139 -142 . DOI: 10.20040/j.cnki.1000-7709.2023.20222154
Jun MAO, Heng-yue HUANG, Yao CHEN, Fei LIU, Shao-chun YUAN, Chun-juan GAN. Numerical Simulation of Falling-sill Dissipation Characteristics of Terminal Drainage Outlets in Mountainous Cities[J]. Water Resources and Power, 2023 , 41 (8) : 139 -142 . DOI: 10.20040/j.cnki.1000-7709.2023.20222154
  • 重庆市建设科技计划项目(城科字2020第5-7)
2023年第41卷第8期
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doi: 10.20040/j.cnki.1000-7709.2023.20222154
  • 接收时间:2022-10-16
  • 首发时间:2026-01-28
  • 出版时间:2023-08-25
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  • 收稿日期:2022-10-16
  • 修回日期:2022-11-06
基金
重庆市建设科技计划项目(城科字2020第5-7)
作者信息
    1.重庆交通大学河海学院,重庆 400074
    2.重庆市市政设计研究院有限公司,重庆 400012

通讯作者:

陈垚(1983-),男,博士、教授,研究方向为水污染防控与城市雨洪管理,E-mail:
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2种不同金属材料的力学参数

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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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