高含沙明渠紊流光滑区f－Re关系与平均流速公式  

The f-Re relationship and formula for mean velocity in smooth region of turbulent open channel flow with hyperconcentrated sediment

作　　者：陈立[1] 

机构地区：[1]武汉水利电力大学河流工程系

出　　处：《水利学报》1995年第4期34-40,共7页Journal of Hydraulic Engineering

摘　　要：本文根据水槽试验结果，从紊动与絮网结构相互影响的角度分析了光滑区内阻力系数ｆ与有效雷诺数Ｒｅ关系散乱的原因；通过分析ｆ与断面平均流速Ｖ的关系，建立了高含沙明渠紊流光滑区平均流速公式，井作初步分析．The relation between resistance coefficient f and Reynolds Number Re of open channel flow with hyperconcentrated sediment is highly scattered in turbulent smooth region. Based on the flume experimental data, the cause of this scatter has been analysed from the view-point of the interaction between turbulence and flocculent structure. The plotting of the f-V curve helps to establish the calculating formula for mean velocity V which can be used in turbulent smooth region.

关 键 词：明渠 高含沙水流 平均流速 光滑区 阻力 

分 类 号：TV133[水利工程—水力学及河流动力学]