异重流非饱和非均匀沙含沙量的沿程分布规律  

Longitudinal distribution law of sediment concentration in unsaturated and heterogeneous density current

作　　者：詹义正[1] 黄良文[1] 赵云[1] 

机构地区：[1]武汉大学水沙科学教育部重点实验室,湖北武汉430072

出　　处：《武汉大学学报（工学版）》2003年第2期6-9,共4页Engineering Journal of Wuhan University

摘　　要：从悬移质运动一般扩散方程出发 ,考虑到异重流沿程不断淤积 ,含沙量不断变化 ,而且粒径沿程也不断细化 ,通过简化方程 ,推导出一维非饱和非均匀沙异重流含沙量的沿程分布方程式 .通过水槽实验资料和实测资料验证 。Based on suspended sediment diffusion equation, and considering that the density current gradually deposits in transition, its concentration gradually varies and its grain size gradually fines; a longitudinal distribution equation of sediment concentration in unsaturated and heterogeneous density current is developed. This equation is reasonable comparing with water tank data and observed data.

关 键 词：异重流 悬移质 不平衡输移 挟沙力 含沙量 

分 类 号：TV145.23[水利工程—水力学及河流动力学]