摘要
基于河工模型试验中含沙量比尺的选取与所选择的模型沙相关的特性,运用异质粒子与紊流跟随性计算结果,从定性上阐释含沙量比尺的取值问题。异质粒子与紊流的跟随性分析表明,模型沙的跟随度随着容重及粒径的减小而增大,采用容重过小的轻质沙,容易使粒径出现严重的变态,从而可能出现含沙量比尺小于1的现象。
The sediment concentration scale on the movable-bed models is related to the model sediment.The calculated result about particle following with turbulent flow can explain the selection of sediment concentration scale.This paper shows that the sediment silt following with turbulent flow increases with increasing specific gravity and particle size.
出处
《太原理工大学学报》
CAS
北大核心
2010年第4期392-394,共3页
Journal of Taiyuan University of Technology
基金
河南省教育厅自然科学基金研究计划项目资助(2008A57005)
关键词
紊流
泥沙
跟随性
turbulent flow
sediment
following
