直线边墙窄缝挑坎的水力计算  

Hydraulic calculation of slit-type flip bucket with straight line sidewalls

作　　者：韩守都[1] 刘韩生[2] 倪汉根[3] 

机构地区：[1]新疆水利水电勘测设计研究院,新疆乌鲁木齐830000 [2]水利部西北水利科学研究所,陕西杨凌712100 [3]大连理工大学建设工程学部,辽宁大连116024

出　　处：《水利水电科技进展》2012年第2期54-56,共3页Advances in Science and Technology of Water Resources

摘　　要：应用辐射水流特性计算窄缝挑坎中线水面线,提出一级直线窄缝挑坎水力计算方法,可以比较简单地计算水面线和水舌挑距。水力模型试验验证结果表明,计算结果与试验值基本吻合;同样来流宽深比情况下,水面线与来流弗劳德数基本无关。Based on the study of radial contraction flow,a theoretical calculation method of calculating hydraulic characteristics for general slit-type flip bucket with straight line sidewalls is established.Appling this new method,the water surface line and horizontal length of jet flow could be calculated easily.The validity of the method is verified by hydraulic model tests,which shows that the calculation results are basically identical with the results of hydraulic model tests.It also can be concluded that the water surface line almost have nothing to do with Froude Number when the width to depth ratio of the flow is same.

关 键 词：窄缝挑坎 水面线 水舌挑距 水力计算 模型试验 

分 类 号：TV131.4[水利工程—水力学及河流动力学]