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计算流体动力学模拟了蛇形微流体装置中的两相流动模式

Younes Amini¹, Valiyollah Ghazanfari², Mehran Heydari²

¹Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, Tehran, Iran. Y_amini@alum.sharif.edu.

Scientific reports

|June 10, 2023

概括

这项研究分析了蛇形微通道中的液体-液体提取 (LLE) 流量. 研究人员发现,随着流速的变化,流量模式从slug转变为droplet或plug流,优化了微流体设备设计.

科学领域:

流体动力学流体动力学
微流体学微流体学
化学工程是化学工程的组成部分.

背景情况:

液体液体提取 (LLE) 在化学过程中至关重要.
了解微通道中的两相流程是流程优化的关键.
蛇形微通道为LLE提供了独特的流动动态.

研究的目的:

分析LLE在蛇形微通道中的流动行为.
调查流速对两相流量模式的影响.
对实验数据进行计算流体动力学 (CFD) 模拟的验证.

主要方法:

使用3D计算流体动力学 (CFD) 模型进行模拟.
对和水流进行了模拟.
将模拟结果与实验数据进行比较以进行验证.

主要成果:

污泥流在低流量时发生,类似于水相和有机相的流量.
总体流量较高导致并行插头流量或滴滴流量.
增加的水性流速转换了流向滴滴或插头流.

结论:

蛇形微通道中的流量模式对相位流速敏感.
CFD模拟为研究微流体流体行为提供了一种具有成本效益的方法.
这些发现有助于优化LLE应用的微流体装置设计.

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