摘要
本文在试验的基础上,分析了散状变形颗粒层内的流动阻力,得到了包含颗粒间相互碰撞及干涉水流结构而产生附加阻力的颗粒层流动阻力与单颗粒绕流阻力的关系式.在此基础上,进一步讨论了泥沙群体的沉降规律.
On the basis of experiments, the flow resistance in loose deformed grain layer is analysed. The relationship is obtained between the flow resistancein the grain layer which includes the additional resistance generated by the impact and interference of grains, and the flow resistance when single particle settle. The bulk settling properties of sediment is also discussed, and the formula for the calculation of bulk settling velocity is suggested.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
1989年第4期1-8,共8页
Journal of Hohai University(Natural Sciences)
关键词
两相流
阻力系数
沉速
泥沙群体沉降
two-phase flow
resistance coefficient
settling velocity
bulk settling of sediment
