摘要
消力池底板属轻型结构,其结构的振动、抗冲、稳定等均与底板水跃区的水流脉动强度直接相关。依托某工程,对底流消能的消力池底板及导墙脉动压力特性进行了较系统的水力学模型试验研究,通过对水流脉动压力测试数据的综合分析,获得了消力池底板及导墙动水压力的分布规律以及点、面压力脉动的换算关系。研究丰富和发展了消力池及导墙的脉动压力特性研究,可为底流消能形式的水流动力特性深入研究提供科学参考。
Bottom plate of stilling basin is light structure,its structural vibration,anti-scouring and stability etc.have direct relation with flow fluctuation intensity on bottom plate in hydraulic jump area.Based on a project,fluctuating pressure characteristics of bottom plate of stilling basin and training wall is researched systematically by hydraulic model test,through comprehensive analysis on measured data of fluctuating flow pressure,the distribution law of dynamic flow pressure of bottom plate of stilling basin and training wall and the conversion relation between point fluctuation pressure and area fluctuation pressure are acquired.The research riches and develops research on fluctuating pressure characteristics of bottom plate of stilling basin and training wall,which provides reference for more deep research on flow dynamic characteristics in bottom energy dissipation.
出处
《人民长江》
北大核心
2009年第17期52-54,共3页
Yangtze River
关键词
消力池
脉动压力
振幅
频率
stilling basin
fluctuating pressure
vibration amplitude
frequency
