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Numerical simulation of single elongated bubble propagation in inclined pipes

机译:斜管中单个细长气泡传播的数值模拟

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摘要

Volume of Fluid (VOF) method was applied to investigate the hydrodynamics of single elongated bubble propagation in inclined pipes. Specially, a moving reference frame attached to the bubble nose was implemented in ANSYS FLUENT. The CFD model was validated with experimental data on the bubble rising speed in inclined pipes with stagnant liquid. The model performance with various turbulence models was studied. The effects of pipe inclination on bubble shape, propagation speed, velocity profile and wall shear stress distribution were analysed. The effect of flowing liquid on the bubble propagating hydrodynamics was also investigated.
机译:流体体积(VOF)方法用于研究倾斜管道中单个细长气泡传播的流体动力学。特别是,在ANSYS FLUENT中实现了连接到气泡鼻的移动参考框架。 CFD模型已通过有关液体停滞的倾斜管道中气泡上升速度的实验数据进行了验证。研究了各种湍流模型的模型性能。分析了管道倾角对气泡形状,传播速度,速度分布和壁切应力分布的影响。还研究了流动液体对气泡传播流体动力学的影响。

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