【作者】 富国； 张永良； 李彦武； 李玉梁； 卞振举；

【Author】 Fu Guo;Zhang Yongliang;Li Yanwu;Li Yuliang;Bian Zhenju;

【机构】 清华大学水利系；

【摘要】 <正>一、前言感潮河段及河口地区污染物质的混合输移由于水动力学条件复杂,而具有成因较多、过程不易识别的特点。从50年代至今,国际上对该领域的研究一直在进行。目前,从成因的角度上看,已经大致把握住了各种质量输移的机制,但仍无法确定一种普适的方法来定量解决河口的离散问题。各个河口研究由于各自特殊的环境条件等因素所采用的经验公式往往有很大的局限性。更多还原

【Abstract】 Mixing and transporting mechanism of contaimination in tidal river networks is very complex.Based on both theoretical analysis and test in laboratory and computer modelling the poper researches deeply the longitudinal dispersion in tidal networks by means of hydrology and water quality data which were observed on the Grang Zhou tidal networds of the Pearl River in December 1987. The main problems to be discussed in this paper are the determination of oscillatory shear dispersion coefficient on natural river,the relation between equal-effective dispersion coefficient and oscillatory shear dispersion coefficient and predicting methods of dispersion coefficient.更多还原