Article(id=1223204289963742203, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20220415, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1646496000000, receivedDateStr=2022-03-06, revisedDate=1660579200000, revisedDateStr=2022-08-16, acceptedDate=null, acceptedDateStr=null, onlineDate=1769564228764, onlineDateStr=2026-01-28, pubDate=1684944000000, pubDateStr=2023-05-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769564228764, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769564228764, creator=13701087609, updateTime=1769564228764, updator=13701087609, issue=Issue{id=1223204286050452333, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='5', 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=1769564227831, creator=13701087609, updateTime=1769567742010, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223219026013323264, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223219026013323265, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=162, endPage=165, ext={EN=ArticleExt(id=1223204290248953871, articleId=1223204289963742203, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Analysis of Flow Pattern Behind Two-stage Flap Valves of Pumping Station, columnId=1222925284869922957, journalTitle=Water Resources and Power, columnName=ELECTROMECHANICS AND CONTROL ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

In order to deeply understand the impact of the alteration of different opening angles of the two stage flap valves on outflow, a two- stage flap valve of a certain pumping station was taken as an example. Choosing four opening angle schemes widely used in practical projects, the three-dimensional flow pattern behind the two stage flap valve under different flow rates was simulated. The influence of flow streamline, velocity uniformity and hydraulic loss in culvert on the flow pattern was analyzed. The results show that the resistance loss coefficient along the outlet culvert is inversely correlated with the opening angle, to be specific the larger the opening angle of the flap valve, the less the hydraulic loss of the water flow in the outlet culvert pipe, and disparity degree becomes more obvious with the increase of the flow rate. When the flow rate is 2 m3/s, the hydraulic loss of the outlet culvert pipe in scheme 4 decreases by 49.6% compared to that of scheme 1; When the flow rate is 16 m3/s, the hydraulic loss of the outlet culvert pipe in scheme 4 decreases by 79.1% compared to that of scheme 1. To conclude, the larger the opening angle of the flap valve, the better the flow pattern in the culvert and when the flap valve is opened to 46°for the upper flap valve and 64°for the lower flap valve in scheme 3, the flow pattern in the culvert has tended to a better state.

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为深入了解双节式拍门不同开启角度对出流的影响,以某泵站的双节式拍门为例,选取在实际工程中大量使用的4种开启角度方案,利用数值模拟方法对双节式拍门在不同流量下的门后水流流态进行了三维模拟计算,分析了水流流线、流速均匀度和涵管内水力损失三个指标对水流流态的影响。结果表明,出水涵管沿程阻力损失系数与开启角度呈负相关关系,拍门开启角度越大,出水涵管内水流的水力损失越少,且随流量的增大越来越明显,流量为2 m3/s时方案4与方案1相比水力损失下降了49.6%,流量为16 m3/s时方案4较方案1水力损失下降了79.1%;涵管内流态与开启角度呈正相关关系,拍门开启角度越大,涵洞内水流流态越好,当拍门的开启至方案3上拍门46°、下拍门64°后,涵洞内水流状态已趋于较优状态。

, correspAuthors=null, authorNote=null, correspAuthorsNote=
陆伟刚(1964-),男,博士、教授,研究方向为工程水力学与水工结构优化设计,E-mail:
, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=ZQ3Qb8x+nHicDEgMxPScrQ==, magXml=OpJsMWlw0JfCNIWabxbNww==, pdfUrl=null, pdf=sXeAnMoAcAkDswvKtOyfSQ==, pdfFileSize=3016567, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=qjoJ7h8S/LTQ+fMpbLr58g==, mapNumber=null, authorCompany=null, fund=null, authors=

付国丛(1996-),男,硕士研究生,研究方向为水工结构,E-mail:

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付国丛(1996-),男,硕士研究生,研究方向为水工结构,E-mail:

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付国丛(1996-),男,硕士研究生,研究方向为水工结构,E-mail:

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泵站双节式拍门门后水流流态分析
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付国丛 1 , 陈华 1 , 周秉南 1 , 刘健峰 1 , 夏辉 2 , 陆伟刚 1
水电能源科学 | 机电与控制工程 2023,41(5): 162-165
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水电能源科学 | 机电与控制工程 2023, 41(5): 162-165
泵站双节式拍门门后水流流态分析
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付国丛1 , 陈华1, 周秉南1, 刘健峰1, 夏辉2, 陆伟刚1
作者信息
  • 1.扬州大学水利科学与工程学院,江苏 扬州 225009
  • 2.江苏省水利勘测设计研究院有限公司,江苏 扬州 225127
  • 付国丛(1996-),男,硕士研究生,研究方向为水工结构,E-mail:

通讯作者:

陆伟刚(1964-),男,博士、教授,研究方向为工程水力学与水工结构优化设计,E-mail:
Analysis of Flow Pattern Behind Two-stage Flap Valves of Pumping Station
Guo-cong FU1 , Hua CHEN1, Bing-nan ZHOU1, Jian-feng LIU1, Hui XIA2, Wei-gang LU1
Affiliations
  • 1.College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, China
  • 2.Jiangsu Surveying and Design Institute of Water Resources Co., Ltd., Yangzhou 225127, China
出版时间: 2023-05-25 doi: 10.20040/j.cnki.1000-7709.2023.20220415
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为深入了解双节式拍门不同开启角度对出流的影响,以某泵站的双节式拍门为例,选取在实际工程中大量使用的4种开启角度方案,利用数值模拟方法对双节式拍门在不同流量下的门后水流流态进行了三维模拟计算,分析了水流流线、流速均匀度和涵管内水力损失三个指标对水流流态的影响。结果表明,出水涵管沿程阻力损失系数与开启角度呈负相关关系,拍门开启角度越大,出水涵管内水流的水力损失越少,且随流量的增大越来越明显,流量为2 m3/s时方案4与方案1相比水力损失下降了49.6%,流量为16 m3/s时方案4较方案1水力损失下降了79.1%;涵管内流态与开启角度呈正相关关系,拍门开启角度越大,涵洞内水流流态越好,当拍门的开启至方案3上拍门46°、下拍门64°后,涵洞内水流状态已趋于较优状态。

双节拍门  /  门后水流  /  流态分析  /  数值模拟  /  泵站

In order to deeply understand the impact of the alteration of different opening angles of the two stage flap valves on outflow, a two- stage flap valve of a certain pumping station was taken as an example. Choosing four opening angle schemes widely used in practical projects, the three-dimensional flow pattern behind the two stage flap valve under different flow rates was simulated. The influence of flow streamline, velocity uniformity and hydraulic loss in culvert on the flow pattern was analyzed. The results show that the resistance loss coefficient along the outlet culvert is inversely correlated with the opening angle, to be specific the larger the opening angle of the flap valve, the less the hydraulic loss of the water flow in the outlet culvert pipe, and disparity degree becomes more obvious with the increase of the flow rate. When the flow rate is 2 m3/s, the hydraulic loss of the outlet culvert pipe in scheme 4 decreases by 49.6% compared to that of scheme 1; When the flow rate is 16 m3/s, the hydraulic loss of the outlet culvert pipe in scheme 4 decreases by 79.1% compared to that of scheme 1. To conclude, the larger the opening angle of the flap valve, the better the flow pattern in the culvert and when the flap valve is opened to 46°for the upper flap valve and 64°for the lower flap valve in scheme 3, the flow pattern in the culvert has tended to a better state.

two-stage flap valves  /  flow pattern on the rear side of the flap valves  /  flow pattern analysis  /  numerical simulation  /  pumping station
付国丛, 陈华, 周秉南, 刘健峰, 夏辉, 陆伟刚. 泵站双节式拍门门后水流流态分析. 水电能源科学, 2023 , 41 (5) : 162 -165 . DOI: 10.20040/j.cnki.1000-7709.2023.20220415
Guo-cong FU, Hua CHEN, Bing-nan ZHOU, Jian-feng LIU, Hui XIA, Wei-gang LU. Analysis of Flow Pattern Behind Two-stage Flap Valves of Pumping Station[J]. Water Resources and Power, 2023 , 41 (5) : 162 -165 . DOI: 10.20040/j.cnki.1000-7709.2023.20220415
  • 国家自然科学基金项目(51779215; 52079120)
2023年第41卷第5期
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doi: 10.20040/j.cnki.1000-7709.2023.20220415
  • 接收时间:2022-03-06
  • 首发时间:2026-01-28
  • 出版时间:2023-05-25
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  • 收稿日期:2022-03-06
  • 修回日期:2022-08-16
基金
国家自然科学基金项目(51779215; 52079120)
作者信息
    1.扬州大学水利科学与工程学院,江苏 扬州 225009
    2.江苏省水利勘测设计研究院有限公司,江苏 扬州 225127

通讯作者:

陆伟刚(1964-),男,博士、教授,研究方向为工程水力学与水工结构优化设计,E-mail:
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2种不同金属材料的力学参数

Family
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Number of
genus
种数
Number of
species
占总种数比例
Percentage of
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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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