摘要
为了研究边墩周围水流流速分布规律,利用声学多普勒流速仪(ADV),对矩形断面明渠中半圆形边墩周围三维流速进行测量,并对所得到的数据进行了分析研究。结果表明:在10°～120°内距离圆心1.23r的区域水流流速受到柱体挤压作用最为明显,在下游170°射线的区域内,水流流速呈非线性波动,整体波动幅度不大。
In order to study the flow velocity distribution,the Acoustic Doppler Velocimeter（ADV）was used to measure the three-dimensional velocity around the semicircle cylinder pier in the rectangular channel.The analysis of the achieved data showed that the most possible flushing ocurred in the section of 1.23r and angle of 10°～120°.In the downstream section where the angle was 170°,the velocity of the flow was nonlinear fluctuation,and the integral amplitude was small.
出处
《沈阳农业大学学报》
CAS
CSCD
北大核心
2009年第6期744-747,共4页
Journal of Shenyang Agricultural University
关键词
流速分布
半圆形边墩
矩形断面明渠
flow velocity distribution
semicircle cylinder pier
rectangular channel
