Computational Fluid Dynamics Model of Two-Phase Flow in NETmix Reactors,Chemical Engineering & Technology

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Computational Fluid Dynamics Model of Two-Phase Flow in NETmix Reactors
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2021-08-27 , DOI: 10.1002/ceat.202100245
Isabel Sousa Fernandes ₁ , Margarida Sarmento e Cunha Abrunhosa de Brito ₁ , Yaidelin Josefina Alves Manrique ₁ , Madalena Maria Gomes de Queiroz Dias ₁ , José Carlos Brito Lopes _{1,

2} , Ricardo Jorge Nogueira dos Santos ₁

Affiliation

A computational fluid dynamics (CFD) modeling approach was developed to study the mixing of two immiscible liquids in NETmix reactors. A two-dimensional two-phase CFD model based on the Euler-Euler approach with the volume-of-fluid (VOF) method was implemented in a reduced physical domain from the imposition of periodic boundary conditions. The fluids modeled were sunflower oil and water. The VOF modeling was validated by comparison with experimental results. CFD results predicted the actual flow regimes and overall flow patterns for each phase at three Reynolds numbers. The validation demonstrated the 2D CFD model to describe the physics of two-phase flow in the NETmix reactors. This model can be applied to design studies for liquid-liquid extraction or gas-liquid reactors, where the operation flow regime is crucial.

中文翻译：

NETmix 反应器中两相流的计算流体动力学模型

开发了一种计算流体动力学 (CFD) 建模方法来研究 NETmix 反应器中两种不混溶液体的混合。基于 Euler-Euler 方法和流体体积 (VOF) 方法的二维两相 CFD 模型通过施加周期性边界条件在缩减的物理域中实现。模拟的流体是向日葵油和水。通过与实验结果的比较，验证了VOF建模。CFD 结果预测了三个雷诺数下每个相的实际流态和整体流型。验证展示了 2D CFD 模型来描述 NETmix 反应器中两相流的物理特性。该模型可应用于液-液萃取或气-液反应器的设计研究，其中操作流态至关重要。

更新日期：2021-10-20

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