水利水电科技进展Issue(2)：6-9,78,5.DOI:10.3880/j.issn.1006-7647.2016.02.002
静水中大雷诺数球形颗粒变加速沉降的理论分析与试验
Theoretical analysis and experimental study of accelerating settlement of a spherical particle in still water with high Reynolds number
摘要
Abstract
The forces on a spherical particle settling in still water with a high Reynolds number were investigated based on the settlement mechanisms of single particles of sediment. The formulas of instantaneous settlement velocity, settlement duration, and settlement displacement during accelerating settlement were deduced. The computational results from the formulas were compared with the experimental results. It was found that the relative errors were all less than 5% between the computational displacement and experimental data, and most of them were less than 4%; and the relative errors were all less than 7% between the computational instantaneous settlement velocity and experimental data, and most of them were less than 5%, indicating that the computational values agreed with the experimental data.关键词
球形颗粒/变加速沉降/沉降位移/瞬时沉速/沉降历时/雷诺数Key words
spherical particle/accelerating settlement/settlement displacement/instantaneous settlement velocity/duration of settlement/Reynolds number分类
建筑与水利引用本文复制引用
尹则高,王振鲁,张黎,尹胜强..静水中大雷诺数球形颗粒变加速沉降的理论分析与试验[J].水利水电科技进展,2016,(2):6-9,78,5.基金项目
国家自然科学基金(51579229,51009123) （51579229,51009123）
山东省科技发展计划(2014GHY115026) （2014GHY115026）
