【摘要】：本文系統(tǒng)地研究了振蕩網(wǎng)格生成的湍流效應(yīng)對(duì)初始泥沙運(yùn)動(dòng)和沉積物再懸浮的影響,總結(jié)了影響泥沙運(yùn)動(dòng)和沉積的因素,給出了沉積物在宏觀角度移動(dòng)的基本概念和觀點(diǎn),并詳細(xì)討論了湍流對(duì)于沉降速度的影響。結(jié)果表明,湍流擾動(dòng)對(duì)初始泥沙運(yùn)動(dòng)有重要影響。懸浮層內(nèi)的濃度分布與沉積物特征和湍流結(jié)構(gòu)有關(guān)。粒子沉降速度是一個(gè)關(guān)鍵參數(shù),它主要受泥沙粒徑分布和流體運(yùn)動(dòng)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(hào)】：TV149

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本文編號(hào)：2467716