摘要
沟道流速是研究小流域土壤侵蚀机理与水土流失规律的重要水动力学参数之一。在室内小流域模型人工降雨土壤侵蚀过程模拟试验中,采用黄河水利科学研究院研发的MVC3000SAC-GE12型流速仪和示踪粒子自动量测沟道流速,并对数据进行处理分析,结果表明:流速仪自动量测的沟道流速平均相对误差仅为5.73%,说明在小流域模型人工降雨模拟试验中沟道流速自动量测是可行的。
Channel flow velocity is one of the important hydrodynamic parameters in small watershed studies of soil erosion mechanism and the rules of water and soil losses. In artificial rainfall indoor watershed model of soil erosion process simulation tests,it illustrated the analysis of automatic measurement of channel flow velocity data processing by using MVC3000SAC- GE12 type current meter and tracer particles which were developed by the Yellow River Institute of Hydraulic Research. The results show that the average relative error of the current meter automatic measurement and manual measurement is only 5. 73%,so the channel flow in small watershed model of artificial rainfall simulation experiment velocity automatic measurement is feasible.
出处
《人民黄河》
CAS
北大核心
2015年第3期100-102,106,共4页
Yellow River
基金
国家自然科学基金资助项目(41301299)
黄河水利科学研究院基本科研业务费专项(HKY-JBYW-2014-06)
关键词
土壤侵蚀
小流域模型
沟道流速
流速仪
自动量测
soil erosion
small watershed model
channel flow velocity
current meter
automatic measurement
