Numerical Investigation on Phase Distribution and Turbulence of Liquid in Bubbly Flow Using Euler-Lagrange Two-Way Method

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Numerical Investigation on Phase Distribution and Turbulence of Liquid in Bubbly Flow Using Euler-Lagrange Two-Way Method

更新时间：2025-07-09

- Numerical Investigation on Phase Distribution and Turbulence of Liquid in Bubbly Flow Using Euler-Lagrange Two-Way Method
- Vol. 44, Issue 7, Pages: 1-5(2010)
- 作者机构：
  
  1. 西安交通大学苏州研究院,江苏,苏州,215021
  2. 西安交通大学动力工程多相流国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK124
- Online First：10 July 2010，
  
  Published：2010
- 稿件说明：
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Numerical Investigation on Phase Distribution and Turbulence of Liquid in Bubbly Flow Using Euler-Lagrange Two-Way Method[J]. 2010, 44(7): 1-5.
DOI：

Numerical Investigation on Phase Distribution and Turbulence of Liquid in Bubbly Flow Using Euler-Lagrange Two-Way Method[J]. 2010, 44(7): 1-5. DOI：

摘要

使用欧拉-拉格朗日双向耦合数值模拟方法对泡状流的相分布及气泡对液相湍流产生的影响做了详细的调查.液相的速度场采用直接数值模拟方法求解

气泡的运动轨迹由牛顿运动方程计算.相间的耦合是把相间作用力作为液相动量方程的源相来实现的

所考虑的相间作用力有阻力、剪切升力、惯性力等.研究表明:阻力、浮力、剪切升力和虚拟质量力对气泡的运动具有重要影响

大量的气泡在剪切升力的作用下聚集在壁面附近; 与单液体相相比

气泡的加入使液相的平均速度、湍流强度和雷诺应力均有一定幅度的降低

而且气泡的加入修改了阻力系数公式.

Abstract

The phase distribution and the effect of bubbles on turbulence of liquid were investigated using the Euler-Lagrange two-way method. The liquid-phase velocity field was solved with the direct numerical simulation(DNS)in the Euler frame of reference

and the bubble motion track was calculated by the Newtonian motion equations considering interaction forces including drag force

shear lift force

inertia force

etc.

in the Lagrange fame of reference. The coupling between phases was realized by regarding the interphase forces as momentum source terms of the continuous phase.The result indicates that the drag force

the buoyant force

the shear lift force

and the virtual mass force have greater effect on the motion of bubbles

and the majority of bubbles accumulate near the walls. Compared with the single liquid phase

the addition of bubbles reduces the streamwise mean velocity

turbulent intensity

and the Reynolds stress of the liquid phase. In addition

the injection of bubbles modifies the turbulent frictional coefficient model.

关键词

Keywords

references

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XIONG Xianpeng, LIU Weihua, ANG Haisong, et al. Numerical simulation of upward micro-bubble-laden turbulent channel flow [J]. Journal of Nanjing University of Aeronautics Astronautics, 2007,39(1):51-55.

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气泡堆积法生成曲线多边形区域非结构化网格及其应用.西安交通大学学报, 2009,43(11):109-113.

沸腾过程的格子Boltzmann方法模拟.西安交通大学学报, 2009,43(7):25-29.

带内嵌固体的不可压缩气液两相界面流数值模拟方法.西安交通大学学报, 2008,42(9):1151-1155.

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