TY - JOUR
T1 - Simulation of Gas-Liquid Two-Phase Flow in Aeration Processes of a Column Type Membrane Module
AU - Xiong, Chang Chuan
AU - Li, Wei Xing
AU - Xing, Wei Hong
N1 - Publisher Copyright:
© 2017, Editorial Board of “Journal of Chemical Engineering of Chinese Universities”. All right reserved.
PY - 2017/10/1
Y1 - 2017/10/1
N2 - Gas-liquid two-phase flow in a column type membrane module during aeration processes was simulated by Eulerian and porous medium models. Effects of aeration rate, aerator hole number and relative position on gas-liquid distribution, turbulent viscosity and liquid flowrate were studied, and the simulation result was agreed well with the experimental data. The results demonstrate that the distribution of gas-liquid becomes more uniform, and the number of whirlpool and circulation flow increase with more uniform distribution of aerator hole and increase of hole number. Turbulent viscosity increases with the increase of aeration rate, and the turbulent viscosity becomes stable after the aeration rate reaches to 5 m3·h-1. Therefore, uniform distribution of aerator hole and increase of hole number can improve gas-liquid distribution and thus facilitate membrane cleaning.
AB - Gas-liquid two-phase flow in a column type membrane module during aeration processes was simulated by Eulerian and porous medium models. Effects of aeration rate, aerator hole number and relative position on gas-liquid distribution, turbulent viscosity and liquid flowrate were studied, and the simulation result was agreed well with the experimental data. The results demonstrate that the distribution of gas-liquid becomes more uniform, and the number of whirlpool and circulation flow increase with more uniform distribution of aerator hole and increase of hole number. Turbulent viscosity increases with the increase of aeration rate, and the turbulent viscosity becomes stable after the aeration rate reaches to 5 m3·h-1. Therefore, uniform distribution of aerator hole and increase of hole number can improve gas-liquid distribution and thus facilitate membrane cleaning.
KW - Computational fluid dynamics
KW - Eulerian model
KW - Gas-liquid two-phase flow
KW - Membrane module of column type
UR - http://www.scopus.com/inward/record.url?scp=85033726536&partnerID=8YFLogxK
U2 - 10.3969/j.issn.1003-9015.2017.05.006
DO - 10.3969/j.issn.1003-9015.2017.05.006
M3 - 文章
AN - SCOPUS:85033726536
SN - 1003-9015
VL - 31
SP - 1052
EP - 1061
JO - Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities
JF - Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities
IS - 5
ER -