Article(id=1223190871756100018, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223190866320278179, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20222149, 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=1668614400000, revisedDateStr=2022-11-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1769561029613, onlineDateStr=2026-01-28, pubDate=1695571200000, pubDateStr=2023-09-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769561029613, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769561029613, creator=13701087609, updateTime=1769561029613, updator=13701087609, issue=Issue{id=1223190866320278179, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='9', 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=1769561028318, creator=13701087609, updateTime=1769562015483, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223195006870082478, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223190866320278179, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223195006870082479, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223190866320278179, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=98, endPage=102, ext={EN=ArticleExt(id=1223190872515269082, articleId=1223190871756100018, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Analysis of Influence of Different Spillway Bends on Spiral Flow of Spillway Side Troughs, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

For side channel spillways, although the adjustment section can be arranged on the downstream side to smooth the water flow, it is difficult to completely avoid the interference of the transverse axis spiral flow on the water flow pattern of the chute. Through numerical simulation, the impacts of the curved circulation in the turning section of the chute on the spiral flow on the lateral axis of the side trough were studied. The results show that when the direction of the circulation and the spiral flow are the same (the turning angle is 14.505°), the streamline in the bend rolls obliquely from the concave bank to the convex bank, the superposition of the flow velocity is obvious, and the circulation intensity intensifies. The lateral flow velocity of the outlet section of the curve reaches 3.29 m/s, and the height difference of the outlet water surface has reached 1.140 m (low left and high right); When the circulation flow of channel bend and spiral flow are in opposite directions (the turning angle is -5°); The water flow in the bend turns from both sides to the axis and then flows downstream, and the circulation phenomenon almost disappears; The lateral flow velocity at the outlet section of the bend decreases to -0.19 m/s, and the height difference of the outlet water surface decreases to -0.467 m (high left and low right). That is, the turbulence of the spiral flow in the upstream groove can be improved by providing a curved path in the chute.

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对于侧槽溢洪道而言,尽管可通过在其下游侧设置调整段以平顺水流,但难以完全避免其横轴螺旋流对泄槽水流流态的干扰。通过数值模拟,研究泄槽转弯段的弯道环流对侧槽横轴螺旋流的影响。结果表明,弯道环流和螺旋流方向一致(转弯角度14.505°)时,弯道内流线从凹岸向凸岸斜向翻卷,流速叠加明显,环流强度加剧,弯道出口断面横向流速达3.29 m/s、出口水面高差已达1.140 m(左低右高);弯道环流和螺旋流方向相反(转弯角度-5°)时,弯道内水流基本表现为从两侧往轴线方向翻卷后向下游流动,环流现象几乎消失,弯道出口断面横向流速下降为-0.19 m/s、出口水面高差降低至-0.467 m(左高右低)。由此可见,可以在泄槽设置弯道改善上游侧槽螺旋流的紊动情况。

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邱勇(1971-),男,教授,研究方向为工程水力学,E-mail:
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郭金楠(1997-),男,硕士研究生,研究方向为工程水力学,E-mail:

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郭金楠(1997-),男,硕士研究生,研究方向为工程水力学,E-mail:

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郭金楠(1997-),男,硕士研究生,研究方向为工程水力学,E-mail:

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不同泄槽弯道对溢洪道侧槽螺旋流的影响分析
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郭金楠 1 , 邱勇 1 , 何沛山 2 , 邬思亨 1 , 季伦永 1
水电能源科学 | 水利水电工程 2023,41(9): 98-102
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水电能源科学 | 水利水电工程 2023, 41(9): 98-102
不同泄槽弯道对溢洪道侧槽螺旋流的影响分析
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郭金楠1 , 邱勇1 , 何沛山2, 邬思亨1, 季伦永1
作者信息
  • 1.云南农业大学水利学院,云南 昆明 650201
  • 2.昆明红昭水利水电工程设计咨询有限公司,云南 昆明 650020
  • 郭金楠(1997-),男,硕士研究生,研究方向为工程水力学,E-mail:

通讯作者:

邱勇(1971-),男,教授,研究方向为工程水力学,E-mail:
Analysis of Influence of Different Spillway Bends on Spiral Flow of Spillway Side Troughs
Jin-nan GUO1 , Yong QIU1 , Pei-shan HE2, Si-heng WU1, Lun-yong JI1
Affiliations
  • 1.College of Water Resources and Hydraulic Engineering, Yunnan Agricultural University, Kunming 650201, China
  • 2.Kunming Hongzhao Water Conservancy and Hydropower Engineering Design Consulting Co., Ltd., Kunming 650020, China
出版时间: 2023-09-25 doi: 10.20040/j.cnki.1000-7709.2023.20222149
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对于侧槽溢洪道而言,尽管可通过在其下游侧设置调整段以平顺水流,但难以完全避免其横轴螺旋流对泄槽水流流态的干扰。通过数值模拟,研究泄槽转弯段的弯道环流对侧槽横轴螺旋流的影响。结果表明,弯道环流和螺旋流方向一致(转弯角度14.505°)时,弯道内流线从凹岸向凸岸斜向翻卷,流速叠加明显,环流强度加剧,弯道出口断面横向流速达3.29 m/s、出口水面高差已达1.140 m(左低右高);弯道环流和螺旋流方向相反(转弯角度-5°)时,弯道内水流基本表现为从两侧往轴线方向翻卷后向下游流动,环流现象几乎消失,弯道出口断面横向流速下降为-0.19 m/s、出口水面高差降低至-0.467 m(左高右低)。由此可见,可以在泄槽设置弯道改善上游侧槽螺旋流的紊动情况。

横向流速  /  垂向流速  /  泄槽弯道环流  /  侧槽螺旋流  /  水流流态

For side channel spillways, although the adjustment section can be arranged on the downstream side to smooth the water flow, it is difficult to completely avoid the interference of the transverse axis spiral flow on the water flow pattern of the chute. Through numerical simulation, the impacts of the curved circulation in the turning section of the chute on the spiral flow on the lateral axis of the side trough were studied. The results show that when the direction of the circulation and the spiral flow are the same (the turning angle is 14.505°), the streamline in the bend rolls obliquely from the concave bank to the convex bank, the superposition of the flow velocity is obvious, and the circulation intensity intensifies. The lateral flow velocity of the outlet section of the curve reaches 3.29 m/s, and the height difference of the outlet water surface has reached 1.140 m (low left and high right); When the circulation flow of channel bend and spiral flow are in opposite directions (the turning angle is -5°); The water flow in the bend turns from both sides to the axis and then flows downstream, and the circulation phenomenon almost disappears; The lateral flow velocity at the outlet section of the bend decreases to -0.19 m/s, and the height difference of the outlet water surface decreases to -0.467 m (high left and low right). That is, the turbulence of the spiral flow in the upstream groove can be improved by providing a curved path in the chute.

transverse velocity  /  vertical velocity  /  chute circulation flow of channel bend  /  side groove spiral flow  /  water flow regime
郭金楠, 邱勇, 何沛山, 邬思亨, 季伦永. 不同泄槽弯道对溢洪道侧槽螺旋流的影响分析. 水电能源科学, 2023 , 41 (9) : 98 -102 . DOI: 10.20040/j.cnki.1000-7709.2023.20222149
Jin-nan GUO, Yong QIU, Pei-shan HE, Si-heng WU, Lun-yong JI. Analysis of Influence of Different Spillway Bends on Spiral Flow of Spillway Side Troughs[J]. Water Resources and Power, 2023 , 41 (9) : 98 -102 . DOI: 10.20040/j.cnki.1000-7709.2023.20222149
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doi: 10.20040/j.cnki.1000-7709.2023.20222149
  • 接收时间:2022-10-16
  • 首发时间:2026-01-28
  • 出版时间:2023-09-25
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  • 收稿日期:2022-10-16
  • 修回日期:2022-11-17
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“兴滇英才支持计划”项目
作者信息
    1.云南农业大学水利学院,云南 昆明 650201
    2.昆明红昭水利水电工程设计咨询有限公司,云南 昆明 650020

通讯作者:

邱勇(1971-),男,教授,研究方向为工程水力学,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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