Abstract Interactive effects between feed flow rate and feed size distribution (FSD) are numerically investigated. The results show that, for too large or too small feed flow rate, when the FSD increases, the content of solid particles misplaced to the overflow or underflow increases, leading to a decrease in separation sharpness. These results can be explained by the multiphase flow pattern and solid particle spatial distribution. What's more, when the feed flow rate too small, the differences between the equilibrium radiuses of different sized particles are small, resulting in low separation sharpness. When the feed flow rate is too large, the regular distribution of different sized particles in the radial direction is severely destroyed. Based on the results from this study, in order to achieve the desired separation performance and the precise particle separation, it is recommended to adapt to changes in the FSD by appropriately increasing the feed flow rate.

中文翻译：

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水力旋流器进料流量与进料粒度分布交互作用研究

摘要 数值研究了进料流速和进料粒度分布（FSD）之间的相互作用。结果表明，对于过大或过小的进料流量，当FSD增加时，错位到溢流或底流的固体颗粒含量增加，导致分离锐度降低。这些结果可以通过多相流型和固体颗粒空间分布来解释。而且，当进料流速太小时，不同粒径颗粒的平衡半径差异很小，导致分离锐度低。当进料流量过大时，严重破坏了不同尺寸颗粒在径向上的规则分布。根据这项研究的结果，