人民黄河Issue(1)：124-126,3.DOI:10.3969/j.issn.1000-1379.2014.01.041
跌扩型底流消能工特征流速影响因素试验研究
Experimental Study on Influencing Factors of Characteristic Velocity of the Falling-Sill and Expanding Bottom-Flow Energy Dissipater
摘要
Abstract
Based on the method of hydraulic test,the influence of depth of the falling-sill,expansion ratio and the flow Froude number on the char-acteristic velocity of the falling-sill and expanding bottom-flow energy dissipater was analyzed emphatically. The research results show that choosing the appropriate depth of falling-sill,expansion ratio and the flow Froude number can effectively decrease the maximum underflow speed and the maximum near-sidewall speed. Under the optimum condition,they can keep the maximum speed of the baseplate and sidewall lower to avoid the e-rosion and cavitation of the baseplate and sidewall.关键词
跌扩型底流消能工/跌坎深度/突扩比/弗劳德数/临底流速Key words
falling-sill and expanding bottom-flow energy dissipater/depth of the fallin-sill/expansion ration/Froude number/underflow speed分类
建筑与水利引用本文复制引用
周书建,王海军,万芳芳,付翔..跌扩型底流消能工特征流速影响因素试验研究[J].人民黄河,2014,(1):124-126,3.基金项目
国家自然科学基金资助项目（51169008）。 （）
