Euler-Euler simulation of bubbly flow in a rectangular bubble column: Experimental validation with Radioactive Particle Tracking
Euler-Euler simulation of bubbly flow in a rectangular bubble column: Experimental validation with Radioactive Particle Tracking
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DOI：
10.1016/j.cej.2012.11.012
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发表时间：
2013-06-01
影响因子：
15.1
通讯作者：
Roy, Shantanu
中科院分区：
文献类型：
--
作者：
Gupta, Ankur;Roy, Shantanu
这项工作提出了一种针对矩形空气-水气泡柱内部流动而开发的欧拉-欧拉 (E-E) 计算流体动力学 (CFD) 模型，其中我们还使用齐次离散方法、非齐次离散方法、矩量求积法 (QMOM) 和直接矩量求积法 (DQMOM) 技术，实现了基于群体平衡法 (PBM) 的各种气泡尺寸类别的演化。结果通过放射性粒子跟踪 (RPT) 技术获得的液体速度场测量进行了验证。该研究对 E-E CFD 与 PBM 框架相结合的各种界面闭合（例如曳力、升力和虚拟质量效应）的效果进行了比较分析。强调了瞬态三维模拟中升力对于预测时间平均速度分布的重要性。 (c) 2012 Elsevier B.V. 保留所有权利。
This work presents an Euler-Euler (E-E) Computational Fluid Dynamics (CFD) model developed for flow inside a rectangular air-water bubble column, in which we have also implemented population balance method (PBM) based evolution of the various bubble size classes using the Homogeneous Discrete method, Inhomogeneous Discrete method, Quadrature Method of Moments (QMOM) and Direct Quadrature Method of Moments (DQMOM) technique. The results are validated with liquid velocity field measurements obtained from the Radioactive Particle Tracking (RPT) technique. The study presents a comparative analysis of the effect of incorporating various interfacial closures like drag force, lift force and virtual mass effect in the E-E CFD coupled with PBM framework. The importance of the lift force in the transient three-dimensional simulations for predicting the time-averaged velocity profiles is highlighted. (c) 2012 Elsevier B.V. All rights reserved.