Three-dimensional simulation of a three-phase draft-tube bubble column

被引：72
|
作者：
Padial, NT
VanderHeyden, WB
Rauenzahn, RM
Yarbro, SL
机构：
[1] Univ Calif Los Alamos Natl Lab, Theoret Div T3 Fluid Dynam, Los Alamos, NM 87545 USA
[2] Univ Calif Los Alamos Natl Lab, Nucl Mat Technol Div, Los Alamos, NM 87545 USA
来源：
CHEMICAL ENGINEERING SCIENCE | 2000年 / 55卷 / 16期
关键词：
bubble column; three phase; multiphase; turbulence; numerical; computer simulation;
D O I：
10.1016/S0009-2509(99)00587-4
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Three-dimensional simulations of a three-phase flow in conical-bottom draft-tube bubble columns were performed using a finite-volume flow simulation technique. Simulated gas volume fraction and column circulation times agree with the experimental observations of Pironti el al. (Chemical Engineering Journal, 60, 155-160). Furthermore, the simulations showed the same loss of column circulation as observed experimentally when the column was operated with the draft-tube in its highest position. The simulation code employed an unstructured grid method along with a multifield description of the multiphase flow dynamics. Modeled physical phenomena included momentum exchange and turbulence due to both sheer and slip among phases. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：3261 / 3273
页数：13
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