Abstract:3D simulation was performed for the solid-liquid two-phase turbulent flow in centrifugal pumps using particle model and inhomogeneous model separately by ANSYS-CFX software. The k-ε turbulence model was applied to predict the liquid-phase, while an algebraic equation known as the dispersed phase zero equation was adopted to predict the solid-phase. At wall boundaries, for the so-lid-phase the free slip wall conditions was used for mass and momentum. The slip velocity and the fraction volume of solid particles on the wall of flow-passage parts were studied. The computational results were compared with the results of the corresponding literature. It is found that solid particles mainly accumulated near the wall of the exit of volute. There are three places where slip velocity of solid particles is relatively high and erosion of walls is more serious. Such as the head of blade near front shroud and the blade trailing edge, also the shroud part close to the back pressure side of blade. With these two models respectively, the CFD simulation can accurately simulate solid-liquid two-phase turbulent flow.
汪家琼, 蒋万明, 孔繁余, 屈晓云, 宿向辉. 基于Particle模型固液两相流离心泵流场数值模拟[J]. 排灌机械工程学报, 2013, 31(10): 846-850.
Wang Jiaqiong, Jiang Wanming, Kong Fanyu, Qu Xiaoyun, Su Xianghui. Numerical simulation of solid-liquid two-phase turbulent flow in centrifugal pump based on Particle model. Journal of Drainage and Irrigation Machinery Engin, 2013, 31(10): 846-850.
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