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《Journal of Sichuan University(Engineering Science Edition)》 2007-04
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Relationship of Location of Flaring Gate Piers,Froude Number at Section of Starting Flare and Weir Head

MO Zheng-yu1,2,WU Chao1,LU Hong3,WANG Bo1,HU Yao-hua1 (1.State Key Lab.of Hydraulics and Mountain River Eng.,Sichuan Univ.,Chengdu 610065,China;2.School of Water Resources and Hydropower,Sichuan Univ.,Chengdu 610065,China;3.Guiyang Hydropower Investigation Design and Research Inst.,CHECC,Guiyang 550002,China)  
A formula of Froude number at the section of starting flare is deduced in this paper.It is shown that the relationship exists among the location of the flaring gate piers,the Froude number at the section of starting flare,the weir head,the head loss and the gate width.Collection of several local water plants'data is carried out and the Froude numbers are calculated by the formula.The result shows that these Froude numbers distributes between 1.7~2.3 and the average value is 2.042.Based on actual projects,the influence of the flaring gate piers location to the Froude number is discussed.The calculated results agree well with those of the numerical stimulations.
【Fund】: 国家自然科学基金(50479061);; 四川大学青年科学基金(200569)
【CateGory Index】: TV135
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