倾斜安装H-ADCP提高测流精度的研究  

Study on improving accuracy of flow measurement by inclined H-ADCP

作　　者：杜兴强 杜越凌 DU Xing-qiang;DU Yue-ling

机构地区：[1]长江水利委员会水文局荆江水文水资源勘测局,湖北荆州434000

出　　处：《东北水利水电》2024年第12期9-13,16,71,共7页Water Resources & Hydropower of Northeast China

基　　金：长江委水文局科技基金资助项目(SWJ-CJX23Z01)。

摘　　要：为解决复杂水流条件下H-ADCP监测的指标流速与断面平均流速相关度较差,实时推求流量精度难以满足规范要求等问题,本文提出H-ADCP换能器采用倾斜式安装方式,并与水平安装方式同步采集数据进行对照分析。文中以长江中游干流一级支流清江出口控制高坝洲水文站测验断面为例,将基于此法的流量计算结果和转子式流速仪法结果进行了精度检验。结果表明,此安装方式采集的指标流速与断面平均流速相关度高,相关关系线通过各项指标检验,以此为基础构建的实时在线流量监测系统有很好的测量精度,对H-AD-CP流量在线监测应用推广有很好的借鉴意义。In order to solve the problem that the correlation between the index velocity monitored by H-ADCP and the average velocity of the section is poor under complex flow conditions,and the accuracy of real-time flow estimation is difficult to meet the requirements of the specification,this paper proposes that the H-ADCP transducer is installed in inclined mode,and the data is collected synchronously with the horizontal installation mode for comparative analysis.Taking the test section of Gaobazhou Hydrographic Station of Qingjiang River in the middle reaches of the Yangtze River as an example,the accuracy of the flow calculation results based on this method and that of the rotor current meter method is checked.The results show that there is a high correlation between the indicator velocity collected by this installation method and the average velocity of the section,and the correlation line passes the test of various indicators.The real-time online flow monitoring system built on this basis has a good measurement accuracy,and has a good reference significance for the application and promotion of H-ADCP online flow monitoring.

关 键 词：水文监测 H-ADCP 倾斜安装 相关度 

分 类 号：P332.4[天文地球—水文科学]