摘要
本文利用二维潮汐流动中纵向流速任意分布的离散系数计算公式,从理论上计算并分析了流速沿垂向为对数分布的正弦式潮汐流动的负离散特性,并通过潮流模拟水槽试验观测了负离散现象,最后将负离散的分析计算方法应用于珠江的员村和黄埔河段,分析得出的污染物极值浓度的分布特性与实测结果一致.
In this paper,using the formula of dispersion coefficient in two dimensional tidal flow with arbitrary velocity distributions along longitudinal direction,the features of negative dispersion are theoretically analyzed for sine tidal flow with logarithmic velocity distribution along vertical direction.The phenomenon of negative dispersion is investigated through the experiments modeling tidal flow in a flume.The analyzing method of negative dispersion is applied to Yuancun and Huanpu reach in Zhujiang river,the obtained distributional features of ultimate concentration agree reasonably with those of field measurements.
出处
《水利学报》
EI
CSCD
北大核心
1992年第9期23-30,38,共9页
Journal of Hydraulic Engineering
基金
国家自然科学基金
