水力发电学报2013，Vol.32Issue(4)：114-119,6.
瓯江口细颗粒泥沙沉速计算方法研究
Study on determination method for settling velocity of fine sediment in Oujiang river estuary
摘要
Abstract
Settling velocity of fine sediment was calculated by fitting Rouse' s formula for vertical profiles of suspended sediment concentration,using the field data of tidal current,sediment concentration and salinity for the strong flood and strong ebb in the Oujiang river estuary in the period from June 23rd to July 1st,2005.The bottom friction velocity was obtained from logarithmic velocity profiles fitted to the measured velocities at different times,and the influences of sediment concentration,salinity and friction velocity were considered.The results show that the settling velocity of suspended sediment in this estuary is proportional to the exponential powers of these three factors.A settling velocity formula was established and it was verified with the field data observed from July 12th to 20th,2002.关键词
水沙动力学/悬沙沉速公式/罗斯公式/瓯江河口/流速对数分布Key words
sediment hydrodynamics/ settling velocity formula of suspended sediment/ Rouse's formula/Oujiang river estuary/ logarithmic velocity distribution分类
建筑与水利引用本文复制引用
林伟波,孔德雨,罗锋..瓯江口细颗粒泥沙沉速计算方法研究[J].水力发电学报,2013,32(4):114-119,6.基金项目
国家海洋公益性行业科研专项经费资助项目(201005006,201205005) （201005006,201205005）
江苏省科技支撑资助项目(BE2011812) （BE2011812）
