Article(id=1223278136742252979, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223278131956551924, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20230007, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1672675200000, receivedDateStr=2023-01-03, revisedDate=1674921600000, revisedDateStr=2023-01-29, acceptedDate=null, acceptedDateStr=null, onlineDate=1769581835208, onlineDateStr=2026-01-28, pubDate=1698163200000, pubDateStr=2023-10-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769581835208, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769581835208, creator=13701087609, updateTime=1769581835208, updator=13701087609, issue=Issue{id=1223278131956551924, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='10', pageStart='1', pageEnd='228', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769581834067, creator=13701087609, updateTime=1769584342407, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223288652869030422, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223278131956551924, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223288652869030423, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223278131956551924, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=128, endPage=132, ext={EN=ArticleExt(id=1223278137065214414, articleId=1223278136742252979, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Study and Optimization of Pressure Characteristics of Suspended Grid Stilling Basin, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

In order to solve the problem of instability of the bottom plate and pressure damage of the suspended grid due to the excessive time-average pressure in the suspended grid stilling basin, numerical simulation was used to study the water level difference and pressure field in four different arrangements of the suspended grille under the design and calibration flow. Two optimization schemes of the combined toe pier-suspended grille and circularized suspended grille were proposed on the basis of the scheme 4 with better water stabilization effect. The results show that the combined toe pier-hanging grille optimisation scheme can reduce the time-average pressure at the bottom plate by 63% and 50% compared to scheme 4 at the design and calibration flow rates, effectively reducing the difference in the time-average pressure Δp2 between the upper surface C and the lower surface D of the grille in the basin. The rounded grille optimisation scheme can make the total pressure distribution at the grille more uniform and avoid local damage to the grille. Therefore, it is recommended to choose a combined auxiliary energy dissipation method of toe pier-suspended grille for high flow stilling basin with pressure requirements.

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为了解决悬栅消力池由于时均压强过大产生底板失稳及悬栅压强破坏的问题,采用数值模拟的方法,在设计及校核流量下,对4种不同布置形式悬栅消力池内水位差及压强场进行研究,并在稳水效果较好的方案4基础上提出趾墩-悬栅联合及圆化悬栅2种消力池优化方案。结果表明,趾墩-悬栅联合优化方案相较于方案4在设计及校核流量下,底板时均压强最大分别降低63%、50%,有效降低了消力池内悬栅上表面C与下表面D之间的时均压强差值|Δp2|;圆化悬栅优化方案可使悬栅处总压强分布更加均匀,避免悬栅局部破坏。故针对有压强要求的大流量悬栅消力池,建议选择趾墩-悬栅联合辅助消能工消能方式。

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牧振伟(1973-),男,教授、博导,研究方向为水力学及河流动力学,E-mail:
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周凯(1997-),男,硕士研究生,研究方向为水力学及河流动力学,E-mail:

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悬栅消力池压强特性研究及优化
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周凯 1, 2 , 牧振伟 1, 2 , 赵乾 1, 2 , 高尚 1, 2
水电能源科学 | 水利水电工程 2023,41(10): 128-132
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水电能源科学 | 水利水电工程 2023, 41(10): 128-132
悬栅消力池压强特性研究及优化
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周凯1, 2 , 牧振伟1, 2 , 赵乾1, 2, 高尚1, 2
作者信息
  • 1.新疆农业大学水利与土木工程学院,新疆 乌鲁木齐 830052
  • 2.新疆水利工程安全与水灾害防治重点实验室,新疆 乌鲁木齐 830052
  • 周凯(1997-),男,硕士研究生,研究方向为水力学及河流动力学,E-mail:

通讯作者:

牧振伟(1973-),男,教授、博导,研究方向为水力学及河流动力学,E-mail:
Study and Optimization of Pressure Characteristics of Suspended Grid Stilling Basin
Kai ZHOU1, 2 , Zhen-wei MU1, 2 , Qian ZHAO1, 2, Shang GAO1, 2
Affiliations
  • 1.College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China
  • 2.Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi 830052, China
出版时间: 2023-10-25 doi: 10.20040/j.cnki.1000-7709.2023.20230007
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为了解决悬栅消力池由于时均压强过大产生底板失稳及悬栅压强破坏的问题,采用数值模拟的方法,在设计及校核流量下,对4种不同布置形式悬栅消力池内水位差及压强场进行研究,并在稳水效果较好的方案4基础上提出趾墩-悬栅联合及圆化悬栅2种消力池优化方案。结果表明,趾墩-悬栅联合优化方案相较于方案4在设计及校核流量下,底板时均压强最大分别降低63%、50%,有效降低了消力池内悬栅上表面C与下表面D之间的时均压强差值|Δp2|;圆化悬栅优化方案可使悬栅处总压强分布更加均匀,避免悬栅局部破坏。故针对有压强要求的大流量悬栅消力池,建议选择趾墩-悬栅联合辅助消能工消能方式。

底流消力池  /  悬栅  /  时均动水压强  /  水位差  /  数值模拟

In order to solve the problem of instability of the bottom plate and pressure damage of the suspended grid due to the excessive time-average pressure in the suspended grid stilling basin, numerical simulation was used to study the water level difference and pressure field in four different arrangements of the suspended grille under the design and calibration flow. Two optimization schemes of the combined toe pier-suspended grille and circularized suspended grille were proposed on the basis of the scheme 4 with better water stabilization effect. The results show that the combined toe pier-hanging grille optimisation scheme can reduce the time-average pressure at the bottom plate by 63% and 50% compared to scheme 4 at the design and calibration flow rates, effectively reducing the difference in the time-average pressure Δp2 between the upper surface C and the lower surface D of the grille in the basin. The rounded grille optimisation scheme can make the total pressure distribution at the grille more uniform and avoid local damage to the grille. Therefore, it is recommended to choose a combined auxiliary energy dissipation method of toe pier-suspended grille for high flow stilling basin with pressure requirements.

underflow stilling basin  /  suspended grate  /  time-averaged dynamic water pressure  /  water level difference  /  numerical simulation
周凯, 牧振伟, 赵乾, 高尚. 悬栅消力池压强特性研究及优化. 水电能源科学, 2023 , 41 (10) : 128 -132 . DOI: 10.20040/j.cnki.1000-7709.2023.20230007
Kai ZHOU, Zhen-wei MU, Qian ZHAO, Shang GAO. Study and Optimization of Pressure Characteristics of Suspended Grid Stilling Basin[J]. Water Resources and Power, 2023 , 41 (10) : 128 -132 . DOI: 10.20040/j.cnki.1000-7709.2023.20230007
  • 国家自然科学基金项目(52269019; 51469031)
  • 新疆维吾尔自治区高校科研计划创新团队项目(XJEDU2017T004)
2023年第41卷第10期
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doi: 10.20040/j.cnki.1000-7709.2023.20230007
  • 接收时间:2023-01-03
  • 首发时间:2026-01-28
  • 出版时间:2023-10-25
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出版历史
  • 收稿日期:2023-01-03
  • 修回日期:2023-01-29
基金
国家自然科学基金项目(52269019; 51469031)
新疆维吾尔自治区高校科研计划创新团队项目(XJEDU2017T004)
作者信息
    1.新疆农业大学水利与土木工程学院,新疆 乌鲁木齐 830052
    2.新疆水利工程安全与水灾害防治重点实验室,新疆 乌鲁木齐 830052

通讯作者:

牧振伟(1973-),男,教授、博导,研究方向为水力学及河流动力学,E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
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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