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Modelling of liquid-solid flow in horizontal pipe applying computational fluid dynamics method

机译：水平管施用计算流体动力学方法的液体固体流模型

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This paper aims to investigate the liquid-solid flow characteristics in the pipeline by employing the commercial Computational Fluid Dynamics (CFD) code Fluent 19.0. To validate the simulation model, the two-layer model and the experiment by Matousek (2002) are cited and the relevant experimental data are compared with the Fluent model. The pressure drop characteristics will be investigated in this paper and the pressure gradient valley-point, which has a profound meaning of the solid-liquid flow transportation, appears around the conversion point of the flow pattern of the solid-liquid flow, and the different flow patterns are analyzed to explain the valley-point better as well. Besides, various sizes of the particles were included in the model, which means the influence of different sizes of the sand mixing on the solid-liquid flow characteristics were investigated.
机译：本文旨在通过采用商业计算流体动力学（CFD）代码流畅的19.0来研究管道中的液体固体流动特性。为了验证仿真模型，将引用双层模型和Matousek（2002）的实验，并将相关的实验数据与流畅的模型进行比较。在本文中将研究压力下降特性，并且压力梯度谷点，其具有固体流动输送的深刻含义，出现在固液流的流动模式的转换点周围，以及不同的分析流动模式以更好地解释谷点。此外，在模型中包含各种颗粒的颗粒，这意味着研究了不同尺寸的砂混合对固体流动特性的影响。

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