Hydrodynamic Study Using CFD Simulations in a Horizontal Two-Phase Flow Through Sudden Contraction

Ibtissem Belgacem; Y. Salhi; E-K. Si-Ahmed

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Hydrodynamic Study Using CFD Simulations in a Horizontal Two-Phase Flow Through Sudden Contraction

机译：水平流体两相流通过突然收缩使用CFD模拟进行水动力研究

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Two-phase flows are encountered in a wide range of industrial application. In the present work, two-phase computational fluid dynamics (CFD) calculations, using Eulerian–Eulerian model and commercial CFD package FLUENT 6.3, were employed to calculate pressure drops caused by abrupt flow area contraction in small circular pipes for two-phase flow of air and water mixtures at room temperature and near atmospheric pressure. The pressure drop is determined by extrapolating the computed pressure profiles upstream and downstream of the contraction. Variables studied include: gas and liquid velocities, and pipe contraction ratio. The numerical results were validated against experimental data from the literature and are found to be in good agreement. Our findings could be useful in designing pipeline.

机译：在广泛的工业应用中会遇到两相流。在目前的工作中，采用欧拉-欧拉模型和商用CFD软件包FLUENT 6.3，进行两相计算流体动力学（CFD）计算，以计算小型圆形管道中两相流的突然流动面积收缩引起的压降。室温和接近大气压的空气和水混合物。通过在收缩的上游和下游外推计算出的压力曲线来确定压降。研究的变量包括：气体和液体的速度以及管道的收缩率。数值结果与文献中的实验数据进行了验证，发现吻合良好。我们的发现可能对设计管道很有用。

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《American Journal of Mechanical and Industrial Engineering》 |2017年第1期|共9页
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Ibtissem Belgacem; Y. Salhi; E-K. Si-Ahmed;
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3. CFD MODELING OF WATER FLOW THROUGH SUDDEN CONTRACTION AND EXPANSION IN A HORIZONTAL PIPE [J] . V.V.R. Kaushik, S. Ghosh, G. Das Chemical Engineering Education . 2011,第1期

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4. TWO-PHASE FLOW PHENOMENA IN A HORIZONTAL PIPE WITH A SUDDEN CONTRACTION: EFFECTS OF CONTRACTION RATIO ON FILM BEHAVIOUR [C] . TAKAHIRO FUJIMATSU, MIZUKI KITO, KUNIKAZU KONDO International conference on computational and experimental methods in multiphase and complex flow . 2019

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5. SUDDEN CONTRACTION LOSSES IN SINGLE AND TWO-PHASE FLOW. [D] . GEIGER, GENE EDWARD. 1964

机译：单相和两相流突然的收缩损失。
6. Hydrodynamic characteristics of the two-phase flow field at gas-evolving electrodes: numerical and experimental studies [O] . Cheng-Lin Liu, Ze Sun, Gui-Min Lu, 2018

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7. Experimental study of two-phase flow structure and pressure drop across a sudden contraction in horizontal pipe [O] . BELGACEM Ibtissem, SALHI Yacine, SI-AHMED El-Khider, 2013

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8. Flow Characteristics and Status of CFD Hydrodynamic Model Development in Sudden Contraction Manifold/Orifice Configurations [R] . Nurick, W. H. 2011

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Hydrodynamic Study Using CFD Simulations in a Horizontal Two-Phase Flow Through Sudden Contraction

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