Journal
CHEMICAL ENGINEERING SCIENCE
Volume 212, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2019.115337
Keywords
Coalescence; Droplets impact; Fibers; Threshold velocity
Categories
Funding
- National Natural Science Foundation of China, China [51578239]
- Scientific Research Projects of Shanghai, China [17DZ1202802]
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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.
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