文献类型：期刊文献

英文题名：Bubble-separation dynamics in a planar cyclone: Experiments and CFD simulations

作者：Xu, Xiao[1];Ge, Xiao-Ling[1];Qian, Yun-Dong[1];Wang, Hua-Lin[2];Yang, Qiang[3]

机构：[1]East China Univ Sci & Technol, Key Lab Pressure Syst & Safety, Minist Educ, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China

年份：2018

卷号：64

期号：7

起止页码：2689

外文期刊名：AICHE JOURNAL

收录：;EI(收录号：20181004852030);WOS:【SCI-EXPANDED(收录号:WOS:000435077000034)】；

基金：The authors wish to express their sincere gratitude to the National Natural Science Foundation of China (51678238, 51722806) and Shanghai Rising-Star Program (16QA1401200) for financial support.

语种：英文

外文关键词：bubble dynamics; planar cyclone; computational fluid dynamics; gas-liquid separation

摘要：A planar cyclone is designed for visualizing bubbles in the cross-section of a degassing hydrocyclone. The pressure distribution is studied through a series of experiments and Reynolds stress model simulations. The velocity distribution of the planar cyclone mostly exhibits the quasi-forced vortex zone and boundary layer zone. The bubble dynamics are simulated using both Euler-Euler and Euler-Lagrange approaches, and the output is compared with the imaging results. The Euler-Euler simulation provides more accurate predictions of the bubble trajectory. The histograms of residence time and traveling distance given by the Euler-Lagrange approach exhibit a reasonably regular pattern. With higher values of the inlet Reynolds number, stronger forces acting on the bubbles lead to a decreased but more uniform residence time. (c) 2018 American Institute of Chemical Engineers AIChE J, 64: 2689-2701, 2018