CFD-PBM simulation with EMMS correctors for bubble column reactors

WANG Jue; YANG Ning

doi:10.11949/j.issn.0438-1157.20170025

您当前的位置：

首页 >

文章列表页 >

CFD-PBM simulation with EMMS correctors for bubble column reactors

更新时间：2025-12-10

- CFD-PBM simulation with EMMS correctors for bubble column reactors
- CIESC Journal Issue 7, Pages: 2667-2677(2017)
- 作者机构：
  
  1. 中国科学院过程工程研究所多相复杂系统国家重点实验室,北京,100190
  2. 中国科学院大学,北京,100049
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170025
  CLC： Q021.1
- Online First：05 July 2017，
  
  Published：05 July 2017
- 稿件说明：
移动端阅览
WANG Jue, YANG Ning. CFD-PBM simulation with EMMS correctors for bubble column reactors[J]. CIESC Journal, 2017, (7): 2667-2677.
DOI：

WANG Jue, YANG Ning. CFD-PBM simulation with EMMS correctors for bubble column reactors[J]. CIESC Journal, 2017, (7): 2667-2677. DOI： 10.11949/j.issn.0438-1157.20170025.

摘要

能量最小多尺度（energy-minimization multi-scale，EMMS）方法已经被应用于气液体系中群平衡（population balance model，PBM）模型的改进。EMMS模型可计算气泡破碎聚并过程的能量，进而获得聚并速率的修正因子。应用这一模型对高气速鼓泡塔进行了模拟计算，并进一步对比了均一尺径模型、CFD-PBM模型以及CFD-PBM-EMMS模型的模拟结果与实验数据。结果表明，在高表观气速条件下，基于EMMS方法的群平衡模型可以更加准确地预测鼓泡塔中不同高度的气泡尺径分布和轴向液速，同时提高了对整体气含率和局部气含率的模拟准确性。在表观气速为0.16 m·s-1和0.25 m·s-1时，CFD-PBM-EMMS模型对气泡尺径分布的预测精度更高，同时整体气含率模拟的相对误差下降为5%和15%，局部气含率模拟平均相对误差下降为8%和17%。

Abstract

The energy-minimization multi-scale (EMMS) model has been introduced to improve the population balance modeling (PBM) of gas-liquid flows. The energy for bubble breakup and coalescence can be obtained from the EMMS model and then used to derive a correction factor for the coalescence rate. This new model is applied in this study to simulate the bubble columns of high flow rates. Simulations using the three different models

namely

the constant-bubble-size model

the CFD-PBM model and the CFD-PBM-EMMS model

are compared with experimental data. The simulation of CFD-PBM-EMMS gives better prediction for bubble size distribution and liquid axial velocity at different heights as well as the overall and local gas holdup. The relative error of global gas holdup reduces to 5% or 15%

and the mean relative error of local gas holdup reduces to 8% or 17% for 0.16 m·s-1 or 0.25 m·s-1 of superficial gas velocity.

关键词

Keywords

references

Views

347

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Numerical simulation of hydrodynamic parameters with air-acetic acid system using CFD-PBM coupled model

Numerical simulation of air-water two-phase flow under elevated pressures and temperatures using CFD-PBM coupled model

Study on liquid flow structure in vertical annular space of scrubbing cooling chamber

Effects of drag model and turbulence model on simulation of air-lift internal-loop reactor

CFD simulation of bubble column with vertical bundle internals

Related Author

Wenlong ZHANG

Shanglei NING

Haibo JIN

Lei MA

Guangxiang HE

Suohe YANG

Xiaoyan GUO

Rongyue ZHANG

Related Institution

College of New Material and Chemical Engineering, Beijing Institute of Petrochemical Technology

Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology

College of Chemical Engineering, Beijing Institute of Petrochemical Technology

Institute of Clean Coal Technology, East China University of Science and Technology

Shanghai Research Institute of Sinopec Lubricant Company Limited

⁰