MODELING AND SIMULATION OF GAS-LIQUID-SOLID THREE-PHASE TURBULENT FLOW BASED ON E/E/L MODEL

WEN Jianping; HUANG Lin; ZHOU Huai; YU Baotian; HU Zongding

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MODELING AND SIMULATION OF GAS-LIQUID-SOLID THREE-PHASE TURBULENT FLOW BASED ON E/E/L MODEL

更新时间：2025-12-10

- MODELING AND SIMULATION OF GAS-LIQUID-SOLID THREE-PHASE TURBULENT FLOW BASED ON E/E/L MODEL
- CIESC Journal Issue 4, (2001)
- 作者机构：
  
  天津大学化工学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 April 2001，
  
  Published：25 April 2001
- 稿件说明：
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WEN Jianping, HUANG Lin, ZHOU Huai, et al. MODELING AND SIMULATION OF GAS-LIQUID-SOLID THREE-PHASE TURBULENT FLOW BASED ON E/E/L MODEL[J]. CIESC Journal, 2001, (4).
DOI：

WEN Jianping, HUANG Lin, ZHOU Huai, et al. MODELING AND SIMULATION OF GAS-LIQUID-SOLID THREE-PHASE TURBULENT FLOW BASED ON E/E/L MODEL[J]. CIESC Journal, 2001, (4). DOI：

摘要

采用基于双流体模型与粒子分散模型相结合的方法

建立了一个用于描述气液固三相湍流流动的Eulerian/Eulerian/Lagrangian模型 (简称E/E/L模型 ) .在Euler坐标系中考虑了气液两相

利用双流体模型来表述气液两相的相互关系 ;同时在Lagrange坐标系中考察了颗粒的运动

并把颗粒对气液两相的影响耦合于双流体模型中 .以流化床内气液固三相湍流流动为例进行的数值模拟结果与实验结果吻合良好 .所提出的模型及其模拟具有很好的准确性和可靠性

为研究气液固三相湍流流动提供了一种新的途径

Abstract

A closed Eulerian/Eulerian/Lagrangian mathematical model(E/E/L model) for simulating gas-liquid-solid three-phase local flow was established by combining Two Fluid Model(TFM) and District Element Method(DEM).This model was based on the fundamental equations of fluid mechanics. The motion of particles was described in the Lagrangian coordinates

while the gas phase and the liquid phase were dealt with in the Eulerian coordinates.Based on IPSA and PSIC solution techniques

the program of simulating gas-liquid-solid local flow was achieved. The predicted results of local gas holdup and local solid holdup as well as local axial liquid velocity agreed well with the experimental data in gas-liquid-solid three-phase fluidized bed

and the applicability and reliability of this model were validated.

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