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首页> 外文期刊>Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear >CFD simulation of multiphase flows and erosion predictions under annular flow and low liquid loading conditions
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CFD simulation of multiphase flows and erosion predictions under annular flow and low liquid loading conditions

机译：环形流动和低液体载荷条件下多相流量和侵蚀预测的CFD模拟

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摘要

For many industrial applications dealing with gas-liquid flow, transporting gas and liquid simultaneously causes many challenges. Prediction of erosion in multiphase flow is a complex problem due to lack of accurate models for calculating particle impact velocities in multiphase flow. Computational Fluid Dynamics (CFD) studies of annular flow are being conducted to investigate annular flow behavior and particle impact characteristics. Volume of Fluid (VOF) method was employed for air-water flow simulation with high gas velocities and low liquid rates. Simulation results are compared with results obtained with Eulerian-Eulerian with Multi-Fluid VOF approach with the same flow rates. CFD simulations of annular flow were also compared and validated with experimental data previously obtained with wire-mesh sensors. The liquid film thickness in bends can significantly affect erosion, therefore the simulation results of liquid film thickness trends are also investigated based on the gas and liquid flow rates.
机译：对于处理煤气流量的许多工业应用，同时运输气体和液体会导致许多挑战。由于缺乏用于计算多相流动中的粒子冲击速度的准确模型，对多相流中的腐蚀预测是复杂的问题。正在进行计算流体动力学（CFD）的环形流动研究以研究环形流动行为和颗粒冲击特性。利用具有高气体速度和低液体速率的气流模拟使用流体（VOF）方法。将模拟结果与欧拉 - 欧拉的结果进行比较，具有相同流速的多流体VOF方法。还比较了环形流动的CFD模拟，并用先前用线网传感器获得的实验数据验证。弯曲中的液体膜厚度可以显着影响侵蚀，因此还基于气体和液体流速研究液体膜厚度趋势的模拟结果。

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