窄缝式挑坎体型及动水压强特性分析  

Analysis of Configuration Layout and Hydrodynamic Pressure Characteristics of Slit-Type Bucket

作　　者：黄智敏[1] 何小惠[1] 朱红华[1] 钟勇明[1] 

机构地区：[1]广东省水利水电科学研究院,广州510610

出　　处：《中国农村水利水电》2006年第5期69-71,74,共4页China Rural Water and Hydropower

摘　　要：通过窄缝式挑坎的体型布置、动水压强特性等资料的总结和分析研究,对窄缝式挑坎的体型布置和反弧收缩段动水压强的计算方法进行探讨。将反弧收缩段的窄缝式挑坎动水压强分为两部分:一为反弧段曲率边界引起的离心惯性力,二为窄缝挑坎水流横向收缩产生的附加动水压强。通过分析研究和水力模型试验,提出了窄缝式挑坎最大动水压强的估算式。研究成果可供工程设计参考。Based on the study and summarization of slit-type bucket, s configuration layout and hydrodynamic pressure intensity, the configuration layout and calculation method for end-curving narrowing buckets pressure intensity are studied. The hydrodynamic pressure of narro wing bucket is divided into two parts in this paper： the first is the centrifugal force cased by end-curving boundary, the second is the hydrody namic pressure intensity exerted by flow horizontal narrowing of bucket. The estimation formula for slit-type buckets maximal pressure intensity is given through analysis and hydraulic model test. The results are valuable for project design.

关 键 词：窄缝式挑坎 体型 动水压强 

分 类 号：TV135.23[水利工程—水力学及河流动力学]