Article(id=1223278133265170648, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223278131956551924, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20222649, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1672070400000, receivedDateStr=2022-12-27, revisedDate=1675785600000, revisedDateStr=2023-02-08, acceptedDate=null, acceptedDateStr=null, onlineDate=1769581834378, onlineDateStr=2026-01-28, pubDate=1698163200000, pubDateStr=2023-10-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769581834378, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769581834378, creator=13701087609, updateTime=1769581834378, 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=145, endPage=148, ext={EN=ArticleExt(id=1223278134066282723, articleId=1223278133265170648, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Influence of Inclination Angle of Curved Overflow Deflector Taper on Flow Field Characteristics of Vortex Setting Chamber, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

The flow field characteristics of vortex setting chamber (VSC) play a decisive role in its water and sediment separation performance. In order to clarify the influence of the inclination angle of the curved deflector on the flow field characteristics of VSC, the large eddy simulation and VOF method are used to study the three-dimensional flow field characteristics of the VSC when the inclination angles of the curved deflector are 5°, 10° and 15° respectively, and the flow field characteristics of the VSC with the plane deflector under the same inlet flow rate are compared. The results show that the use of curved cantilever deflector will increase the eddy current intensity in the VSC chamber and reduce the range of low velocity zone. The increase of the inclination angle can improve the stability of the air vortex, increase the strength and size of the air vortex, which is beneficial to the separation of water and sediment. The radial velocity in the cone area increases with the increase of the inclination angle, and basically points to the center of the VSC, which is conducive to the rapid transport of sediment to the bottom hole of the sediment discharge. The velocity of the overflow flow on the surface of the curved deflector is greater than that on the surface of the plane deflector, and the flow velocity on the deflector is the largest when the inclination angle is 15°.

, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Huai-meng GU, Yan-wen WANG, Lin LI, Ping-yuan WANG), CN=ArticleExt(id=1223278134833840377, articleId=1223278133265170648, tenantId=1146029695717560320, journalId=1205116964453384197, language=CN, title=曲面溢流悬板倾角对排沙漏斗流场特性的影响, columnId=1222925283989115411, journalTitle=水电能源科学, columnName=水利水电工程, runingTitle=null, highlight=null, articleAbstract=

排沙漏斗的流场特性对其水沙分离性能具有决定性作用,为了探究曲面悬板的倾角对排沙漏斗流场特性的影响,利用大涡模拟和VOF相结合的方法,对曲面悬板倾角分别为5°、10°、15°时的排沙漏斗三维流场特性开展研究,并与相同进流量下排沙漏斗设置平面悬板时的流场特性进行对比。结果表明,采用曲面悬板可增大漏斗室内的涡流强度,减小低流速带的范围,倾角增加能提高空气涡的稳定性、增加空气涡的强度和尺寸,有利于水沙旋流分离;锥体区径向流速随倾角增加而增大,且基本指向漏斗中心,有利于泥沙快速输移至排沙底孔;曲面悬板表面溢出水流的流速大于平面悬板表面的流速,且倾角θ为15°时,悬板上流速最大。

, correspAuthors=null, authorNote=null, correspAuthorsNote=
李琳(1979-),女,博士、教授、博导,研究方向为水力学及和流动力学,E-mail:
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顾怀猛(1999-),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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顾怀猛(1999-),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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顾怀猛(1999-),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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曲面溢流悬板倾角对排沙漏斗流场特性的影响
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顾怀猛 1, 2 , 王延文 3 , 李琳 1, 2 , 王平圆 1, 2
水电能源科学 | 水利水电工程 2023,41(10): 145-148
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水电能源科学 | 水利水电工程 2023, 41(10): 145-148
曲面溢流悬板倾角对排沙漏斗流场特性的影响
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顾怀猛1, 2 , 王延文3, 李琳1, 2 , 王平圆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
  • 3.新疆塔城地区水利水电勘察设计院,新疆 塔城 834700
  • 顾怀猛(1999-),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:

李琳(1979-),女,博士、教授、博导,研究方向为水力学及和流动力学,E-mail:
Influence of Inclination Angle of Curved Overflow Deflector Taper on Flow Field Characteristics of Vortex Setting Chamber
Huai-meng GU1, 2 , Yan-wen WANG3, Lin LI1, 2 , Ping-yuan WANG1, 2
Affiliations
  • 1.School of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China
  • 2.Key Laboratory of Water Conservancy Engineering Safety and Water Disaster Prevention, Urumqi 830052, China
  • 3.Xinjiang Tacheng District Water Conservancy and Hydropower Survey and Design Institute, Tacheng 834700, China
出版时间: 2023-10-25 doi: 10.20040/j.cnki.1000-7709.2023.20222649
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排沙漏斗的流场特性对其水沙分离性能具有决定性作用,为了探究曲面悬板的倾角对排沙漏斗流场特性的影响,利用大涡模拟和VOF相结合的方法,对曲面悬板倾角分别为5°、10°、15°时的排沙漏斗三维流场特性开展研究,并与相同进流量下排沙漏斗设置平面悬板时的流场特性进行对比。结果表明,采用曲面悬板可增大漏斗室内的涡流强度,减小低流速带的范围,倾角增加能提高空气涡的稳定性、增加空气涡的强度和尺寸,有利于水沙旋流分离;锥体区径向流速随倾角增加而增大,且基本指向漏斗中心,有利于泥沙快速输移至排沙底孔;曲面悬板表面溢出水流的流速大于平面悬板表面的流速,且倾角θ为15°时,悬板上流速最大。

排沙漏斗  /  流场特性  /  曲面悬板  /  数值模拟  /  大涡模拟

The flow field characteristics of vortex setting chamber (VSC) play a decisive role in its water and sediment separation performance. In order to clarify the influence of the inclination angle of the curved deflector on the flow field characteristics of VSC, the large eddy simulation and VOF method are used to study the three-dimensional flow field characteristics of the VSC when the inclination angles of the curved deflector are 5°, 10° and 15° respectively, and the flow field characteristics of the VSC with the plane deflector under the same inlet flow rate are compared. The results show that the use of curved cantilever deflector will increase the eddy current intensity in the VSC chamber and reduce the range of low velocity zone. The increase of the inclination angle can improve the stability of the air vortex, increase the strength and size of the air vortex, which is beneficial to the separation of water and sediment. The radial velocity in the cone area increases with the increase of the inclination angle, and basically points to the center of the VSC, which is conducive to the rapid transport of sediment to the bottom hole of the sediment discharge. The velocity of the overflow flow on the surface of the curved deflector is greater than that on the surface of the plane deflector, and the flow velocity on the deflector is the largest when the inclination angle is 15°.

vortex setting chamber  /  flow field characteristics  /  curved deflector  /  numerical simulation  /  large eddy simulation
顾怀猛, 王延文, 李琳, 王平圆. 曲面溢流悬板倾角对排沙漏斗流场特性的影响. 水电能源科学, 2023 , 41 (10) : 145 -148 . DOI: 10.20040/j.cnki.1000-7709.2023.20222649
Huai-meng GU, Yan-wen WANG, Lin LI, Ping-yuan WANG. Influence of Inclination Angle of Curved Overflow Deflector Taper on Flow Field Characteristics of Vortex Setting Chamber[J]. Water Resources and Power, 2023 , 41 (10) : 145 -148 . DOI: 10.20040/j.cnki.1000-7709.2023.20222649
  • 国家自然科学基金项目(52069028)
2023年第41卷第10期
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doi: 10.20040/j.cnki.1000-7709.2023.20222649
  • 接收时间:2022-12-27
  • 首发时间:2026-01-28
  • 出版时间:2023-10-25
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  • 收稿日期:2022-12-27
  • 修回日期:2023-02-08
基金
国家自然科学基金项目(52069028)
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
    3.新疆塔城地区水利水电勘察设计院,新疆 塔城 834700

通讯作者:

李琳(1979-),女,博士、教授、博导,研究方向为水力学及和流动力学,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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