竖缝式鱼道90°～180°转弯段水力特性及优化研究
TV135; 受鱼道进出口位置、工程地质、枢纽布置等因素限制,鱼道工程需要布置不同角度的转弯段池室,以适应复杂多变工程环境.采用数值模拟的方法,研究了同侧竖缝式鱼道不同转角α(90°≤α≤180°)的转弯段池室流场分布规律,并对不同转角池室提出了系统的优化措施.结果表明,当转弯角度α大于90°时,均出现主流冲击外侧边壁,池室中部伴有大尺度回流区的现象,并随着转弯段角度α增大,主流冲击程度加剧,回流区尺度也进一步扩大.针对上述流场问题,采用加设整流导板的措施进行优化,提出转弯角度α介于90°～140°之间时,整流较好的导板位置α0/α值由1/4.0增加至1/2.8,当α介于140°～180°之间...
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| Published in | 中国农村水利水电 no. 5; pp. 113 - 121 |
|---|---|
| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
河海大学水利水电学院,江苏 南京 210098%河海大学水利水电学院,江苏 南京 210098
15.05.2024
水安全与水科学协同创新中心,江苏 南京 210098%中水北方勘测设计研究有限责任公司,天津 300222 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1007-2284 |
| DOI | 10.12396/znsd.231700 |
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| Abstract | TV135; 受鱼道进出口位置、工程地质、枢纽布置等因素限制,鱼道工程需要布置不同角度的转弯段池室,以适应复杂多变工程环境.采用数值模拟的方法,研究了同侧竖缝式鱼道不同转角α(90°≤α≤180°)的转弯段池室流场分布规律,并对不同转角池室提出了系统的优化措施.结果表明,当转弯角度α大于90°时,均出现主流冲击外侧边壁,池室中部伴有大尺度回流区的现象,并随着转弯段角度α增大,主流冲击程度加剧,回流区尺度也进一步扩大.针对上述流场问题,采用加设整流导板的措施进行优化,提出转弯角度α介于90°～140°之间时,整流较好的导板位置α0/α值由1/4.0增加至1/2.8,当α介于140°～180°之间时,α0/α值基本稳定于1/2.8～1/3.0之间,即随着转弯角度α的逐渐增加,较优的α0/α值呈现先增加后趋于稳定的变化趋势,可为转弯段结构相似布置鱼道优化设计提供参考. |
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| AbstractList | TV135; 受鱼道进出口位置、工程地质、枢纽布置等因素限制,鱼道工程需要布置不同角度的转弯段池室,以适应复杂多变工程环境.采用数值模拟的方法,研究了同侧竖缝式鱼道不同转角α(90°≤α≤180°)的转弯段池室流场分布规律,并对不同转角池室提出了系统的优化措施.结果表明,当转弯角度α大于90°时,均出现主流冲击外侧边壁,池室中部伴有大尺度回流区的现象,并随着转弯段角度α增大,主流冲击程度加剧,回流区尺度也进一步扩大.针对上述流场问题,采用加设整流导板的措施进行优化,提出转弯角度α介于90°～140°之间时,整流较好的导板位置α0/α值由1/4.0增加至1/2.8,当α介于140°～180°之间时,α0/α值基本稳定于1/2.8～1/3.0之间,即随着转弯角度α的逐渐增加,较优的α0/α值呈现先增加后趋于稳定的变化趋势,可为转弯段结构相似布置鱼道优化设计提供参考. |
| Abstract_FL | Restricted by the inlet and outlet position of the fishway,engineering geology,hub layout and other factors,the fishway project needs to arrange the turning section of the pool chamber at different angles to adapt to complex and ever-changing engineering environments.This article adopts numerical simulation method to study the flow field distribution law of the turning section of a fish lane with vertical slits on the same side at different turning angles α(90°≤α≤180°),and systematic optimization measures are proposed for different turning angles.The results show that when the turning angle α is greater than 90 °,the mainstream impacts the outer wall,and there is a large-scale recircu-lation zone in the middle of the pool.With the increase of the turning angle α,the impact of the mainstream is intensified,and the scale of the recirculation zone is further expanded.In view of the above flow field problems,the measures of adding rectifier guide plate are adopted for optimization.It is proposed that when the turning angle α is between 90° and 140°,the α0/α value of the guide plate position with better rectification increases from 1/4.0 to 1/2.8.When α is between 140° and 180°,the α0/α value is basically stable between 1/2.8 and 1/3.0.That is to say,with the gradual increase of the turning angle α,the better α0/α value increases first and then tends to be stable,It can provide ref-erence for the optimization design of similar arrangement fishway in turning section structure. |
| Author | 李国岭 贺蔚 刘卫 杨振冰 陈胜 张健 |
| AuthorAffiliation | 河海大学水利水电学院,江苏 南京 210098%河海大学水利水电学院,江苏 南京 210098;水安全与水科学协同创新中心,江苏 南京 210098%中水北方勘测设计研究有限责任公司,天津 300222 |
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| Author_FL | YANG Zhen-bing HE Wei ZHANG Jian LI Guo-ling LIU Wei CHEN Sheng |
| Author_FL_xml | – sequence: 1 fullname: LI Guo-ling – sequence: 2 fullname: CHEN Sheng – sequence: 3 fullname: HE Wei – sequence: 4 fullname: LIU Wei – sequence: 5 fullname: YANG Zhen-bing – sequence: 6 fullname: ZHANG Jian |
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| DocumentTitle_FL | Study on Hydraulic Characteristics and Optimization of 90°～180° Turning Section of Vertical Slot Fishway |
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| Keywords | 水力特性 rectifier guide plate 整流导板 竖缝式鱼道 hydraulic characteristics vertical slit fishway 90°~180°池室转弯段 90°～180° pool room turning section 数值模拟 numerical simulation |
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| PublicationTitle | 中国农村水利水电 |
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| PublicationYear | 2024 |
| Publisher | 河海大学水利水电学院,江苏 南京 210098%河海大学水利水电学院,江苏 南京 210098 水安全与水科学协同创新中心,江苏 南京 210098%中水北方勘测设计研究有限责任公司,天津 300222 |
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| Title | 竖缝式鱼道90°～180°转弯段水力特性及优化研究 |
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