高、中、低浓度挟沙水流挟沙力公式的对比分析  

Contrast of formulae of sediment carrying capacity for sediment laden flow with high, median and low concentrations

作　　者：陈雪峰[1] 陈立[1] 李义天[1] 

机构地区：[1]武汉水利电力大学水利水电学院,湖北武汉430072

出　　处：《武汉水利电力大学学报》1999年第5期1-5,共5页Engineering Journal of Wuhan University

基　　金：国家自然科学基金重点资助

摘　　要：近期得到的高、中、低浓度挟沙水流统一挟沙力公式均以能量平衡为基础，公式都反映出紊动扩散作用与重力作用之比是决定挟沙力大小的最关键因素．利用实测的１８０ 多组资料对这些公式进行对比、验证。Based on the energetic balance, several formulae of sediment carrying capacity for sediment laden flow with high, median and low concentrations have been constructed recently. In this paper, more than 180 groups of field observed data have been used to contrast and verify these formulae. Meanwhile, a right method to determine the resistance coefficient has been carried out.

关 键 词：水流挟沙力 挟沙水流 阻力系数 

分 类 号：TV143.4[水利工程—水力学及河流动力学]