基于声学多普勒流速仪测流的断面流速分布研究  

Research on velocity distribution of flow measurement based on acoustics doppler current profile measurement method

作　　者：黄炜[1] 唐运忆[1] 赵德友[1] 丁昌言 李国栋[3] HUANG Wei;TANG Yunyi;ZHAO Deyou;DING Changyan;LI Guodong(Jiangsu Province Hydrology and Water Resources Investigation Bureau, Nanjing 210029, China;Jiangsu Province Hydrology and Water Resources Investigation Bureau Yangzhou Branch,Yangzhou 225000, China;Jiangsu Province Hydrology and Water Resources Investigation Bureau Yangzhou Branch, Yancheng 224051, China)

机构地区：[1]江苏省水文水资源勘测局,江苏南京210029 [2]江苏省水文水资源勘测局扬州分局,江苏扬州225000 [3]江苏省水文水资源勘测局盐城分局,江苏盐城224051

出　　处：《水利信息化》2017年第4期61-67,共7页Water Resources Informatization

摘　　要：选择泾河、射阳河闸2个水文站的走航式声学多普勒流速仪测流数据,进行测流断面上的垂向、水平层流速分布及垂向平均流速的横向分布研究。研究结果表明:对于顺直河段,垂线点流速分布基本符合理论流速分布;对于受感潮影响的测流断面,相对流速脉动和均化影响较大,难以找到流速分布规律。通过基于断面流速分布特点的断面有效测速单元确定,可以为测速垂线和垂线上测速点的布设、固定式声学多普勒流速仪安装位置选择等提供技术支撑。The research of vertical velocity distribution,horizontal velocity distribution,and transverse distribution of vertical mean velocity,is based on the shipboard-type ADCP discharge measurement data which are measured on Jinghe and Shenyang two hydrological stations.The results show that the vertical velocity distribution satisfies the theoretical velocity distribution on the straight section.It is difficult to find the velocity distribution law for the influence of tidal flow on the cross section,which has a great influence on relative velocity fluctuation and homogenization.The effective velocity measurement unit of the cross section is determined by the velocity distribution characteristics of the cross section,which can provide technical support for the layout of velocity measurement points on the vertical and the installation location of fixed acoustic Doppler velocity meter.

关 键 词：声学多普勒流速仪 测流断面 垂向流速分布 水平层流速分布 垂向平均流速横向分布 有效测速单元 

分 类 号：P335[天文地球—水文科学]