挟沙水流的能量级串和泥沙输移特性综述  

Review of energy cascade and sediment transport of sediment-laden flow

作　　者：刘兆存[1] 邓宇忠[1] 王万战[2] 范玮佳[1] 

机构地区：[1]重庆交通大学内河航道整治技术交通行业重点实验室,重庆400016 [2]黄河水利科学研究院泥沙研究所,郑州450003

出　　处：《水道港口》2010年第6期566-576,共11页Journal of Waterway and Harbor

基　　金：重庆交通大学内河航道整治交通行业重点实验室基金(140024);重庆交通大学青年基金(XN-2009-04);省部共建水利水运工程重点实验室基金(SLK2009A01)

摘　　要：评述了清水水流、低含沙水流和高含沙水流流动的时均流和脉动流能量之间的分配关系。通过对比清水水流、低含沙水流和高含沙水流的流动结构、物理特性以及它们之间的异同,探讨了挟沙水流的物理机制以及泥沙对水流运动特性的影响,从涡运动观点对高含沙水流运动的雷诺数和理查逊数的物理意义进行了解释,对存在的若干问题进行了讨论,对有关研究方向进行了展望。The energy distribution relations between the mean flow and the fluctuating flow of the clear,the low-sediment-laden and the hyper-concentrated flow were reviewed in this paper.A comparison of the flowing structure,the energy properties and the other similarities and differences among them were made to explore the physical mechanism and the interactions between the sediment moving and the fluid flowing.The Reynolds number and the Richardson number were explained from the viewpoint of the eddy motions.Some knotty problems were discussed and suggestions were also prospected.

关 键 词：挟沙水流 能量级串 脉动 

分 类 号：TV14[水利工程—水力学及河流动力学] TV131.2