摘要
利用波流泥沙实验水槽,进行二维均匀流输沙实验,研究悬沙浓度垂向分布、悬沙扩散系数及其垂向分布.结果表明.悬沙浓度沿垂线分布与Rouse公式吻合良好;悬沙垂向扩散系数与水流紊动垂向扩散系数成正比;悬沙垂向扩散系数的垂向分布可用抛物线描述,其最大值与水动力和泥沙条件紧密相关.
Experiments on sediment transport by two-dimensional uniform currents were carried out using wave-flow-sediment flume. It is found that the vertical distribution of suspended sediment concentration （SSC） agrees well with Rouse＇s equation, and the vertical sediment mixing coefficient is proportion to the vertical fluid mixing coefficient, and may be described by a parabola. The maximum of vertical sediment mixing coefficient is related to hydrodynamics and SSC.
出处
《华东师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第1期112-118,共7页
Journal of East China Normal University(Natural Science)
基金
国家自然科学基金(50479046)
973项目(2002CB412403)
