长喉槽水头损失公式的修正  

Modification of formula of head loss for long-throated flume

作　　者：王长德[1] 管光华[1] 崔巍[1] 范杰[1] 

机构地区：[1]武汉大学水利水电学院,湖北武汉430072

出　　处：《武汉大学学报（工学版）》2005年第2期1-5,共5页Engineering Journal of Wuhan University

基　　金：国家863计划(2001AA242111);国家自然科学基金(59879016)资助项目.

摘　　要：在实验的基础上,指出对用边界层理论计算长喉槽水头损失公式的缺陷,分析了局部水头损失产生的机理,补充了进口侧收缩水头损失的计算,对原公式进行修正提高计量精度.Based on an experiment of head loss for long-throated flume, the flaw of water head loss calculating formula which based on the theory of boundary layer is pointed out. And the mechanism how the energy loss happened is analyzed; and the calculation of water head loss in the inlet side shrink section is added. Finally, the formal formula is modified so as to improve the accuracy of calculation.

关 键 词：长喉槽 水头损失 边界层 淹没度 测流精度 

分 类 号：TV671[水利工程—水利水电工程]