通过振荡网格实验研究初始泥沙运动和沉积物再悬浮（英文）

发布时间：2019-04-28 14:42

【摘要】：本文系统地研究了振荡网格生成的湍流效应对初始泥沙运动和沉积物再悬浮的影响,总结了影响泥沙运动和沉积的因素,给出了沉积物在宏观角度移动的基本概念和观点,并详细讨论了湍流对于沉降速度的影响。结果表明,湍流扰动对初始泥沙运动有重要影响。悬浮层内的浓度分布与沉积物特征和湍流结构有关。粒子沉降速度是一个关键参数,它主要受泥沙粒径分布和流体运动影响。
[Abstract]:In this paper, the effects of turbulence generated by oscillatory grids on initial sediment movement and sediment resuspension are systematically studied, and the factors affecting sediment movement and sediment are summarized, and the basic concepts and viewpoints of sediment movement in macro-angle are given. The effect of turbulence on settlement velocity is discussed in detail. The results show that turbulence disturbance has an important effect on the initial sediment movement. The concentration distribution in the suspended layer is related to sediment characteristics and turbulent structure. Particle settling velocity is a key parameter, which is mainly affected by particle size distribution and fluid movement.
【作者单位】： Department
【基金】：Project supported by the Dana Impak Perdana(No.DIP-2015-006) Arus Perdana(No.AP-2014-008),Universiti Kebangsaan Malaysia
【分类号】：TV149

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