文献类型：期刊文献

英文题名：A study on a droplet impact on a fiber during coalescence-separation: Phenomena and models

作者：Gu, Wenquan[1];Yan, Shenglin[1];Bai, Zhishan[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2020

卷号：212

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20195007803446);WOS:【SCI-EXPANDED(收录号:WOS:000502034600028)】；

基金：This work was supported by the National Natural Science Foundation of China, China (51578239) and Scientific Research Projects of Shanghai, China (17DZ1202802).

语种：英文

外文关键词：Coalescence; Droplets impact; Fibers; Threshold velocity

摘要：Droplets impact on fibers occurred in liquid phase plays a vital role in the coalescence-separation applications, however, the mechanism and details are still unclear. Here we investigated the impact process through energy conversion and impact dynamics and two models are established to determine the threshold velocities of capture. The adhering phenomenon is observed when the impact velocity is smaller than the minimum threshold velocity V-c1. The droplet may be captured by fibers when the impact velocity is larger than V-c1 and smaller than the maximum threshold velocity V-c2. These two velocities limit a range in which the droplet may be captured by fibers are significant to facilitate the optimization of coalescence separation. This study opens up opportunities for understanding the details of coalescence separation as well as improving efficiency of industrial applications. (C) 2019 Elsevier Ltd. All rights reserved.