跌水坎流体动力性噪声模拟试验研究  

Fluid Dynamic Noise Modeling Experimentation of Energy Dissipater

作　　者：张云清[1] 郭维东[1] 宓永宁[1] 王再兴 王璞东 

机构地区：[1]沈阳农业大学,辽宁沈阳110161 [2]大伙房水库管理局,辽宁抚顺113000

出　　处：《中国农村水利水电》2006年第8期82-84,共3页China Rural Water and Hydropower

摘　　要：以流体声学相似原理为依据,对3种跌水坎形式进行噪声模拟试验。利用古典声学理论对背景噪声进行分析与修正,评估降噪的效果,确定跌水坎的修改形式。并对修改方案进行不同比尺的试验,对声强进行曲线拟合,绘制趋势线,推求原型噪声的大小,为工程建设提供参考依据。Based on the principles of acoustic similarity, the modeling experimentation of three forms of energy dissipaters is conducted. Analyses and modification of background noise are carried through using classic acoustics theory; the effect of noise lessening is evaluated to determine the modified form of energy dissipater. The curve of sound intensity is fitted through experimentation of the modified energy dissipater scenarios with three different proportions. The tendency curve is drawn to ascertain the range of prototype noise. The study can offer support for actual constructions.

关 键 词：声学相似原理 马赫数 背景噪声 

分 类 号：TB53[理学—物理]