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浙江大学学报(工学版)
水利工程、土木工程     
隧洞尾部带加压板弧形闸门水流垂向收缩特性
万五一,潘锦豪,俞韵祺
浙江大学 水利工程学系,浙江 杭州 310058
Investigation on hydraulic vena contracta of radial gate for closed conduit with roof panel
WAN Wu-yi, PAN Jin-hao, YU Yun-qi
Department of Hydraulic Engineering, Zhejiang University, Hangzhou 310058, China
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摘要:

为了分析压力隧洞尾部弧形闸门出口水流的垂向收缩特性,采用水流带动彩线的试验演示和测量压力隧洞弧形闸门处的水流特性.试验测量不同开度下的水位流量关系,获得不同开度和水位情况下弧形闸门的收缩系数,以及收缩系数与开度、水位的关系.利用量纲分析和回归拟合获得了收缩系数与开度和水位的近似方程.结果表明,压力隧洞尾部弧形闸门的出闸水流收缩程度较明渠无压弧形闸门的小,收缩系数随着开度的增大而先减小后增大,而随上游水位的变化趋势不明显.拟合的收缩系数公式能够较好地计算压力隧洞尾部带加压板弧形闸门的水流收缩系数.

Abstract:

 In order to analyze the vertical contraction of the  outflow through  radial gate, a hydraulic experiment  was conducted. The flow characteristics were investigated through various color threads distributed in the flow field. The experiment presented the contraction coefficients  for various situations of gate openings and water levels by measuring the corresponding discharge.  Then the relationship of the contraction coefficient, gate opening and water level was analyzed. Consequently an approximate formula was suggested by the dimension and regression analysis. The results show, the hydraulic contraction of the radial gate with roof panel in closed conduit is smaller than that one in open flow. The contraction coefficient increases at first and then decreases with the increase of the gate opening, but it changes slightly with the water level. The proposed approximate formula proposed can reasonably calculate the contraction coefficient for the radial gate with roof panel in closed conduit.

出版日期: 2015-12-26
:  TV 135.2  
基金资助:

国家自然科学基金资助项目(51279175)

作者简介: 万五一(1975-),男,副教授,从事水力学及河流动力学方向的研究.wanwuyi@zju.edu.cn
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万五一,潘锦豪,俞韵祺. 隧洞尾部带加压板弧形闸门水流垂向收缩特性[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2015.05.020.

WAN Wu-yi, PAN Jin-hao, YU Yun-qi. Investigation on hydraulic vena contracta of radial gate for closed conduit with roof panel. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2015.05.020.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2015.05.020        http://www.zjujournals.com/eng/CN/Y2015/V49/I5/950

[1] 毛根海. 工程应用流体力学[M]. 北京:高等教育出版社, 2008:170-179.
[2] 武汉水利电力学院水力学教研室. 水力计算手册[M]. 北京:水利出版社, 1980.
[3] 刘国强,王长德,管光华,等. 南水北调中线干渠弧形闸门过流能力校核分析[J]. 南水北调与水利科技,2010,8(1):24-28.
LIU Guo-qiang, WANG Chang-de, GUAN Guang-hua, et al. Analysis and check of radial gate conveyance capability on the middle route of the south-to-north water transfer project [J]. South-to-North Water Transfers and Water Science & Technology, 2010, 8(1): 24-28.
[4] 穆祥鹏,陈文学,崔巍,等. 弧形闸门流量计算方法的比较与分析[J]. 南水北调与水利科技,2009, 7(5):202-227.
MU Xiang-peng, CHEN Wen-xue, CUI Wei, et al. Comparison and analysis of discharge calculation methods of radial gates [J]. South-to-North Water Transfers and Water Science & Technology, 2009, 7(5):202-227.
[5] 刘孟凯,王长德,闫奕博,等. 弧形闸门过闸流量公式比较分析[J]. 南水北调与水利科技,2009,7(3):1819+26.
LIU Meng-kai, WANG Chang-de, YAN Yi-bo, et al. Analysis and comparison of radial gate flow formulas [J]. South-to-North Water Transfers and Water Science & Technology, 2009, 7(3):1819+26.
[6] SALAZAR F, MORAN R, ROSSI R, et al. Analysis of the discharge capacity of radial-gated spillways using CFD and ANN - Oliana Dam case study [J]. Journal of Hydraulic Research, 2013, 51(3): 244-252.
[7] HABIBZADEH A, VATANKHAH A R, RAJARATNAM N. Role of energy loss on discharge characteristics of sluice gates [J]. Journal of Hydraulic Engineering-ASCE, 2011, 137(9): 1079-1084.
[8] BIJANKHAN M, FERRO V, KOUCHAKZADEH S. New stage-discharge relationships for radial gates [J]. Journal of Irrigation and Drainage Engineering-ASCE, 2013, 139(5): 378-387.
[9] SHAHROKHNIA M A, JAVAN, M. Dimensionless stage-discharge relationship in radial gates [J]. Journal of Irrigation and Drainage Engineering-ASCE, 2006, 132(2): 180184.
[10] ZAHEDANI M R, KESHAVARZI A, JAVAN M, et al. New equation for estimation of radial gate discharge [J]. Proceedings of the Institution of Civil Engineers-Water Management, 2012, 165(5): 253-263.
[11] 倪汉根,刘亚坤. 闸下出流及带有压板出口的水流收缩系数[J]. 水动力学研究与进展(A辑),2000,15(2):141-147.
NI HAN-GEN, LIU YA-KUN. Vertical contraction coefficient of flow from outlet with compressing outlet [J]. Journal of Hydrodynamics, 2000, 15(2):141-147.
[12] 李国栋,许文海,邵建斌,等. 泄洪洞弧形闸门突扩突跌出口段三维流动的数值模拟[J]. 武汉大学学报:工学版,2007,40(5):3438.
LI Guo-dong, XU Wen-hai, SHAO Jian-bin, et al. Numerical simulation of 3D flow at radial gate region with sudden lateral enlargement and bottom drop [J]. Engineering Journal of Wuhan University. Engineering Edition, 2007, 40(5):34-38.
[13] 王才欢,侯冬梅,李利,等. 高水头弧形闸门突扩跌坎及掺气设施体型研究与工程实践[J]. 水力发电学报,2012,31(5):107-113.
WANG Cai-huan, HOU Dong-mei, LI Li, et al. Study of shape design of the aerator with sudden lateral enlargement and bottom drop behind high-head radial gate and its engineering applicaton [J]. Journal of Hydroelectric Engineering, 2012, 31(5):107-113.
[14] 张月霞,冯宇,易文敏,等. 水力翻板闸门流量系数的试验研究[J]. 水力发电学报,2010,29(5):220-225.
ZHANG Yue-xia, FENG Yu, YI Wen-min, et al. Experimental study on the discharge coefficient of hydraulic flap gate [J]. Journal of Hydroelectric Engineering, 2010, 29(5):220225.
[15] 曹睿,刘艳升,严超宇,等. 垂直锐边孔口的自由出流特性(I) 流动状态和孔结构参数对孔流系数的影响[J]. 化工学报,2008,59(9):2175-2180.
CAO Rui, LIU Yan-sheng, YAN Chao-yu, et al. Characteristics of vertical sharp-edged orifice discharge(I) Effect of flow regime and configuration parameters on orifice discharge coefficient [J].Journal of Chemical Industry and Engineering  , 2008, 59(9):2175-2180.
[16] ANDERSON J D. Computational fluid dynamics: the basics with applications [M]. New York∶McGraw-hill Inc. 1995:66-74.

[1] 马健, 曹卫平, 蒋承杰, 等. 浅水流动环境中垂向缝隙射流的数值模拟[J]. J4, 2010, 44(1): 190-196.