消力池底板脉动压力与噪声耦合研究  

Research on the Coupling of Fluctuating Pressure and Corresponding Noise of Force Reduction Pool Bottoms

作　　者：胡志华[1] 郭维东[1] 李晓东 谢芳芳 刘旭冉[1] 李浩 徐星星 李杨 

机构地区：[1]沈阳农业大学水利学院,沈阳110866 [2]赤峰市水利局,内蒙古赤峰024000 [3]辽宁省清河水库管理局,辽宁铁岭112003 [4]抚顺市水利勘测设计研究院,辽宁抚顺113008

出　　处：《中国农村水利水电》2013年第3期126-128,132,共4页China Rural Water and Hydropower

基　　金：国家自然科学基金资助项目(40071183);沈阳市科学技术计划项目(F10-097-3-00);校教师青年科研基金资助项目(20121004)

摘　　要：以水力学和声学理论为依据,以模型试验的形式进行,选定宽顶堰进行研究,设定3个流量,测量并记录各种方案下消力池底板水流脉动压强及相应噪声值。经分析发现,水流脉动压强及噪声值都随流量增大而增大,消力池底板水流脉动压强与噪声值有一定的相关性,脉动压强值最大断面与消力池噪声值最大断面相同,但变化趋势不完全相同。水流与固壁之间的相互作用和水流紊动(水流与水流的相互作用)是引起水流噪声的主要因素。Based on the hydraulic and acoustic theory, a model test of broad-crested weir was carried out, and the fluctuating pressure and corresponding noise values of force reduction pool bottom were measured and recorded with three schemes of different flow rate1 The results show that the fluctuating pressure and noise value of water flow increases with the increase in flow rates, the fluctuati1 pressure has certain correlation with the noise value, yet the fluctuating pressure change trend was not the same as the noise valut The main reasons of producing flow noise were the interaction of flow and solid bottom and the flow turbulence. ｜

关 键 词：消力池 溢流堰 模型试验 脉动压力 

分 类 号：TV[水利工程]