摘要
泥沙在河渠中运动受着水流紊动作用,主要有滚动,跳跃,悬移三种形式.泥沙在运动中就单个颗粒而言,在每次运动的一个小阶段上,运动具有必然性,遵循确定的力学规律.而对确定的某一颗粒的多次运动,或大量颗粒的一次运动均带有随机性,应遵循统计规律. 本文应用了紊流中泥沙运动的随机理论,并在此基础上建立了悬移泥沙运动的沉降模式.研究沉沙池中泥沙的沉降过程,以此确定沉沙池的尺寸,所得结果与几个实际沉沙池资料作了对比,吻合较好.
There are three moving forms of sediment in river, rolling, jumping and suspending. For a single sediment, the movement is certain and abided by mechanical regularity in a short period. But for repeated movement of a single or movement of a large quantity of sediment, it's accidental and abided by stochastic regularity.In this paper, we discussed the stochastic regularity of sediment in settling basin, and obtained the relationship of the length of settling basin, silting ratio and the diameter of sediment,To compare with the actual situation, it's quite accurate and the computation is easier.
出处
《泥沙研究》
CSCD
北大核心
1992年第4期35-42,共8页
Journal of Sediment Research
