Article(id=1223201266608750837, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223201250133524577, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221603, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1659542400000, receivedDateStr=2022-08-04, revisedDate=1664726400000, revisedDateStr=2022-10-03, acceptedDate=null, acceptedDateStr=null, onlineDate=1769563507940, onlineDateStr=2026-01-28, pubDate=1690214400000, pubDateStr=2023-07-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769563507940, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769563507940, creator=13701087609, updateTime=1769563507940, updator=13701087609, issue=Issue{id=1223201250133524577, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='7', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769563504012, creator=13701087609, updateTime=1769563583713, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223201584469885927, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223201250133524577, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223201584469885928, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223201250133524577, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=137, endPage=140, ext={EN=ArticleExt(id=1223201271398646205, articleId=1223201266608750837, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Adjustment of Two-stage Stilling Basin with Large Diffusion Angle on Three-dimensional Flow, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

When the diffusion angle of each side of the wing wall in the gate is 12°, the horizontal distribution of outlet velocity of single-stage stilling basin is easy to be uneven in the medium and low water level period. To solve this problem, based on the physical model test, the law of horizontal distribution of outlet velocity of two-stage stilling basin was studied. The results show that with the decrease of downstream water level, the outlet velocity at the left and right banks of the second stage stilling basin changes in four stages: decrease- increase-decrease-increase, and the initial water level and water level range of each stage were closely related to the Fr. The smaller the incoming flow Fr is, the stronger the horizontal diffusion ability of hydraulic jump in the second stage stilling basin is, and it will be less disturbed by the backflow on both sides of the first stage stilling basin. The range of water level in the second stage will be larger, and it is more suitable for the medium and low water levels. The closer the downstream water level is to the end water level of the second stage, the greater the outlet velocity at both sides of the second stage stilling basin is, and the horizontal distribution of outlet velocity is more uniform. When the incoming flow Fr is the same, the regulating effect of the second stage stilling basin is more significant at low water level, and the energy dissipation rate is greater. The results can be used as a reference for the design of energy dissipation facilities under the gate and the operation management of the gate.

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针对闸下翼墙每侧扩散角为12°时,中低水位期单级消力池出池流速横向分布易不均匀的问题,基于物理模型试验,研究了二级消力池布置时出池流速横向分布变化规律。结果表明,随着下游水位降低,第二级消力池尾坎左右岸处的出池流速呈减小—增大—减小—增大四个阶段变化,各阶段的起始水位高低和水位区间大小与来流弗劳德数Fr密切相关,来流Fr越小,第二级消力池内水跃横向扩散主流的能力越强,受到第一级消力池两侧回流的干扰越小,阶段二的水位区间范围越大,且更适应中低水位;下游水位越接近阶段二的终止水位,第二级消力池尾坎两端流速越大,出池流速横向分布越均匀;Fr相同时,第二级消力池调整水流作用在低水位时更显著,消能率更大。该成果可供闸下消能设计和闸门运行管理参考。

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马腾飞(1989-),男,硕士、讲师,研究方向为水力学及河流动力学,E-mail:

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马腾飞(1989-),男,硕士、讲师,研究方向为水力学及河流动力学,E-mail:

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大扩散角二级消力池对三元水流的调整影响
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马腾飞 a, b , 葛文生 b , 杨明杰 b
水电能源科学 | 水利水电工程 2023,41(7): 137-140
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水电能源科学 | 水利水电工程 2023, 41(7): 137-140
大扩散角二级消力池对三元水流的调整影响
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马腾飞a, b , 葛文生b, 杨明杰b
作者信息
  • a.皖江工学院港口建设优化与航道治理升级工程研究中心,安徽 马鞍山 243031
  • b.皖江工学院水利工程学院,安徽 马鞍山 243031
  • 马腾飞(1989-),男,硕士、讲师,研究方向为水力学及河流动力学,E-mail:

Adjustment of Two-stage Stilling Basin with Large Diffusion Angle on Three-dimensional Flow
Teng-fei MAa, b , Wen-sheng GEb, Ming-jie YANGb
Affiliations
  • a.Engineering Technology Research Center for Port Construction Optimization and Waterway Regulation Upgrading, Wanjiang University of Technology, Ma’anshan 243031, China
  • b.School of Hydraulic Engineering, Wanjiang University of Technology, Ma’anshan 243031, China
出版时间: 2023-07-25 doi: 10.20040/j.cnki.1000-7709.2023.20221603
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针对闸下翼墙每侧扩散角为12°时,中低水位期单级消力池出池流速横向分布易不均匀的问题,基于物理模型试验,研究了二级消力池布置时出池流速横向分布变化规律。结果表明,随着下游水位降低,第二级消力池尾坎左右岸处的出池流速呈减小—增大—减小—增大四个阶段变化,各阶段的起始水位高低和水位区间大小与来流弗劳德数Fr密切相关,来流Fr越小,第二级消力池内水跃横向扩散主流的能力越强,受到第一级消力池两侧回流的干扰越小,阶段二的水位区间范围越大,且更适应中低水位;下游水位越接近阶段二的终止水位,第二级消力池尾坎两端流速越大,出池流速横向分布越均匀;Fr相同时,第二级消力池调整水流作用在低水位时更显著,消能率更大。该成果可供闸下消能设计和闸门运行管理参考。

二级消力池  /  12°扩散角  /  三元水流  /  调整  /  横向分布

When the diffusion angle of each side of the wing wall in the gate is 12°, the horizontal distribution of outlet velocity of single-stage stilling basin is easy to be uneven in the medium and low water level period. To solve this problem, based on the physical model test, the law of horizontal distribution of outlet velocity of two-stage stilling basin was studied. The results show that with the decrease of downstream water level, the outlet velocity at the left and right banks of the second stage stilling basin changes in four stages: decrease- increase-decrease-increase, and the initial water level and water level range of each stage were closely related to the Fr. The smaller the incoming flow Fr is, the stronger the horizontal diffusion ability of hydraulic jump in the second stage stilling basin is, and it will be less disturbed by the backflow on both sides of the first stage stilling basin. The range of water level in the second stage will be larger, and it is more suitable for the medium and low water levels. The closer the downstream water level is to the end water level of the second stage, the greater the outlet velocity at both sides of the second stage stilling basin is, and the horizontal distribution of outlet velocity is more uniform. When the incoming flow Fr is the same, the regulating effect of the second stage stilling basin is more significant at low water level, and the energy dissipation rate is greater. The results can be used as a reference for the design of energy dissipation facilities under the gate and the operation management of the gate.

two-stage stilling basin  /  twelve degree diffusion angle  /  three-dimensional flow  /  adjustment  /  horizontal distribution
马腾飞, 葛文生, 杨明杰. 大扩散角二级消力池对三元水流的调整影响. 水电能源科学, 2023 , 41 (7) : 137 -140 . DOI: 10.20040/j.cnki.1000-7709.2023.20221603
Teng-fei MA, Wen-sheng GE, Ming-jie YANG. Adjustment of Two-stage Stilling Basin with Large Diffusion Angle on Three-dimensional Flow[J]. Water Resources and Power, 2023 , 41 (7) : 137 -140 . DOI: 10.20040/j.cnki.1000-7709.2023.20221603
  • 安徽省高校自然科学研究重点项目(KJ2019A1279)
  • 安徽省2021年高校优秀青年人才支持计划项目(gxyq2021242)
  • 皖江工学院港口建设优化与航道治理升级工程研究中心开放基金项目(GKHD202001)
2023年第41卷第7期
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doi: 10.20040/j.cnki.1000-7709.2023.20221603
  • 接收时间:2022-08-04
  • 首发时间:2026-01-28
  • 出版时间:2023-07-25
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  • 收稿日期:2022-08-04
  • 修回日期:2022-10-03
基金
安徽省高校自然科学研究重点项目(KJ2019A1279)
安徽省2021年高校优秀青年人才支持计划项目(gxyq2021242)
皖江工学院港口建设优化与航道治理升级工程研究中心开放基金项目(GKHD202001)
作者信息
    a.皖江工学院港口建设优化与航道治理升级工程研究中心,安徽 马鞍山 243031
    b.皖江工学院水利工程学院,安徽 马鞍山 243031
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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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