2-D hydrodynamic model of bubble column based on lateral-force balance

LI Zhaoqi; WANG Lijun; GUAN Xiaoping; CHENG Youwei; LI Xi

doi:10.3969/j.issn.0438-1157.2014.11.002

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2-D hydrodynamic model of bubble column based on lateral-force balance

更新时间：2025-12-10

- 2-D hydrodynamic model of bubble column based on lateral-force balance
- CIESC Journal Issue 11, Pages: 4222-4230(2014)
- 作者机构：
  
  浙江大学化学工程与生物工程学系,浙江,杭州,310027
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.11.002
  CLC： Q021.1
- Online First：05 November 2014，
  
  Published：05 November 2014
- 稿件说明：
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LI Zhaoqi, WANG Lijun, GUAN Xiaoping, et al. 2-D hydrodynamic model of bubble column based on lateral-force balance[J]. CIESC Journal, 2014, (11): 4222-4230.
DOI：

LI Zhaoqi, WANG Lijun, GUAN Xiaoping, et al. 2-D hydrodynamic model of bubble column based on lateral-force balance[J]. CIESC Journal, 2014, (11): 4222-4230. DOI： 10.3969/j.issn.0438-1157.2014.11.002.

摘要

提出了一种鼓泡塔二维轴对称流体力学模型

模型中将气泡所受的升力以及湍动扩散力作为形成塔内气含率稳定分布的主要机制.采用Fluent 6.3流体力学软件求解模型

能得到稳定的二维流场

气含率与液速分布与实验值吻合良好

模型能准确反映表观气速(0.12～0.62 m·s-1)以及塔径(ø200 mm、ø500 mm、ø800 mm)对流型的影响.利用该模型对更大直径鼓泡塔的流动参数进行了预测

结果与文献给出的经验关联式相符.

Abstract

A 2-D axisymmetric hydrodynamic model of bubble column was developed

by considering lift force and turbulent dispersion force on bubbles as main mechanism of stable distribution of gas holdup. A commercial code Fluent 6.3 was used for calculation

and the model gave a stable 2-D flow pattern

in which distributions of gas holdup and liquid velocity were in good agreement with experimental data. The model correctly demonstrated the influence of superficial gas velocity (0.12—0.62 m·s-1) and column diameter (ø200 mm

ø500 mm

ø800 mm) on flow pattern. Furthermore

hydrodynamic variables predicted by the model in larger scale columns agreed with published empirical correlations.

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