【摘要】：本文系統(tǒng)地研究了振蕩網(wǎng)格生成的湍流效應對初始泥沙運動和沉積物再懸浮的影響,總結了影響泥沙運動和沉積的因素,給出了沉積物在宏觀角度移動的基本概念和觀點,并詳細討論了湍流對于沉降速度的影響。結果表明,湍流擾動對初始泥沙運動有重要影響。懸浮層內的濃度分布與沉積物特征和湍流結構有關。粒子沉降速度是一個關鍵參數(shù),它主要受泥沙粒徑分布和流體運動影響。
[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.
【作者單位】： Department
【基金】：Project supported by the Dana Impak Perdana(No.DIP-2015-006) Arus Perdana(No.AP-2014-008),Universiti Kebangsaan Malaysia
【分類號】：TV149

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本文編號：2467716