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Accelerating Taylor Bubbles within Circular Capillary Channels: Break-up Mechanisms and Regimes
International Journal of Multiphase Flow ( IF 3.6 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.ijmultiphaseflow.2020.103488
Manolia Andredaki , Anastasios Georgoulas , Nicolas Miché , Marco Marengo

Abstract In the present paper, an enhanced Volume of Fluid model is applied for the conduction of parametric numerical simulations, to investigate break-up phenomena of accelerating, elongated, vapour bubbles, within circular mini-channels. The effect of fundamental controlling parameters in the resulting break-up characteristics is investigated. Four different series of parametric numerical simulations of isolated vapour bubbles within mini-channels are performed, examining the effects of the imposed pressure difference between the inlet and the outlet of the channel, the surface tension, the effect of the applied heat flux as well as the initial liquid film thickness between the bubbles and the channel, on the developed vapour/liquid interface dynamics. The overall dimensionless number ranges examined are 6.76

中文翻译:

在圆形毛细管通道内加速泰勒气泡:破裂机制和机制

摘要 在本文中,增强的流体体积模型被应用于参数化数值模拟的传导,以研究圆形微通道内加速、拉长、蒸汽气泡的破裂现象。研究了基本控制参数对最终破碎特性的影响。对微型通道内的孤立蒸汽泡进行了四个不同系列的参数化数值模拟,检查通道入口和出口之间施加的压力差、表面张力、施加的热通量的影响以及气泡和通道之间的初始液膜厚度,在发展的汽/液界面动力学上。检查的整体无量纲数范围为 6.76
更新日期:2021-01-01
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