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IMPROVED PARTICLE INTERACTIONS IN A FLUID FLOW.

机译:流体流动中改善的颗粒相互作用。

摘要

Interaction between two different species of particle(s) in a fluid stream is promoted by generating turbulent eddies (1, 2) in a fluid stream. The turbulente eddies are designed to be of such size and/or intensity that the different sized particle(s) are entrained into the eddies to significantly different extents and forced to follow different trajectories (3, 4), increasing the likelihood of collisions and interactions. Optimum collision rates will occur for a system which maintains a Stokes Number (St) much less than 1 for one sized particle, and or order 1 or greater for the other sized particle. The invention has particular application in air pollution control, whereby agglomeration of fine particles into larger particles is promoted, subsequent to their removal.
机译:通过在流体流中产生湍流涡流(1、2)来促进流体流中的两种不同种类的颗粒之间的相互作用。湍流涡流的大小和/或强度设计为,使得不同大小的颗粒被夹带到涡流中的程度明显不同,并被迫遵循不同的轨迹(3、4),从而增加了碰撞和相互作用的可能性。对于一个尺寸保持不变的斯托克斯数(St),对于一种尺寸的颗粒,其斯托克斯数(St)远小于1;对于另一种尺寸的颗粒,则为1或更大,则最佳碰撞速率将发生。本发明在空气污染控制中具有特殊的应用,由此,在将细颗粒去除之后,可促进细颗粒聚集成大颗粒。

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