摘要
建立了一套高精度的明渠非恒定流实验系统,并通过40组水槽实验研究光滑明渠内正弦型连续非恒定流的传播速度。实验表明,明渠非恒定流的传播速度为非恒定流波峰时的流速和微波波速之和。通过相关分析拟合得出的公式计算结果与实测数据吻合较好,拟合公式能较好地反映非恒定流传播特性。
One high-accuracy experimental systems was established for unsteady flows of open channel,and 40 experiments in open flume were conducted for studying the propagating velocity of continuous unsteady flow.The experiment results show that the propagating velocity of unsteady open-channel flows can be expressed by flow velocity and micro-wave velocity at wave peak.
出处
《水运工程》
北大核心
2009年第3期15-17,共3页
Port & Waterway Engineering
基金
"十一五"国家科技支撑计划项目(2006BAB05B01)
关键词
光滑明渠
非恒定流
传播速度
unsteady flow
smooth open channel
propagating velocity
