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-  2018 

90°弯管液固两相流动冲蚀磨损的数值模拟 Numerical simulation of erosion damage in liquid-solid elbow flow

Keywords: 磨损,弯管流动,数值模拟,湍流模型

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Abstract:

以90°弯管对研究对象,基于欧拉-拉格朗日方法对弯管内部的液固两相流动开展了数值模拟研究,重点对弯管内固液两相流的磨损预测方法进行了深入研究.研究表明,在本算例中碰撞模型的选择对最终磨损预测的影响并不明显,因此可以忽略碰撞模型对磨损计算带来的差异;对7种磨损模型分别进行了计算评估,结果表明基于Oka磨损模型和Vieria磨损模型的磨损预测结果与实验值最为接近;颗粒形状会对磨损预测产生较大影响,随着颗粒形状因子的减小,磨损呈现下降趋势.研究成果可为后续工程应用提供理论支撑

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