复式梯形断面水力计算在电厂取水明渠中的应用  

The Application of Double Trapezoidal Hydraulic Calculation in Open Channels of Power Plant Water

作　　者：罗敏[1] 袁方[2] 郑冠军[3] 葛小玲 

机构地区：[1]国务院南水北调办公室政策及技术研究中心,北京100038 [2]南水北调中线干线工程建设管理局,北京100038 [3]国核电力规划设计研究院,北京100094

出　　处：《工程建设与设计》2017年第10期118-119,共2页Construction & Design for Engineering

摘　　要：明渠水力计算是电厂取水明渠断面设计的重要内容之一。论文将复式梯形断面分阶梯分别计算面积后累加,提高了过水断面面积计算精度。同时运用连续性方程和能量方程,在给定流量、断面尺寸等条件下计算流速和水损,借助Excel软件进行试算,得出符合设计条件的流速和水头损失,从而确定合理过水断面尺寸。The hydraulic calculation of open channel is an important contents of plant water channel design. In this paper, the area of the cross section is calculated and the calculation accuracy of the cross section area is improved. At the same time using the continuity equation and energy equation, calculate the flow rate and water loss at a given flow rate, section size and other conditions,calculated by Excel software, it meets the design conditions of the flow rate and head loss, so as to determine the reasonable cross section size.

关 键 词：复式梯形断面 明渠水力计算 单变量求解 水损 

分 类 号：TV133[水利工程—水力学及河流动力学]