华中科技大学学报（自然科学版）Issue(3)：32-36,5.DOI:10.13245/j.hust.150307
轴流泵固液两相数值模拟及磨损特性研究
Research on numerical simulation and wear characteristics of solid-liquid two-phase of axial-flow pump
摘要
Abstract
To study the wear characteristics of hydraulic components of an axial‐flow pump transpor‐ting silt carrying flow ,the inner solid‐liquid two‐phase flow field was simulated by utilizing the inho‐mogeneous model and the particle model based on software ANSYS CFX .The focus was placed on the analysis of the solid phase volume fraction distribution and slip velocity on the hydraulic components wall ,and their relations with the wear characteristics .Results show that the solid particles are mainly accumulated near the head and the pressure surface of blades ,so the pressure surface wears faster than the suction side and the most serious wear damage appears on the head of inlet .Different direc‐tional solid phase slips cause different types of wear on blade head and blade surface .Where the solid phase slipping faster ,the volume fraction is larger ,the wear of hydraulic components is more serious . Under the same solid phase volume fraction ,the slip velocity of the pressure surface is higher than that of the suction side .In the same position of the blade surface ,solid phase slip velocity is increas‐ing with the increase of solid phase volume fraction and particle diameter ,and the wear of hydraulic components become more serious when transporting flows with large particles .关键词
轴流泵/粒子模型/非均相流模型/滑移速度/固液两相/磨损特性Key words
axial-flow pump/particle model/inhomogeneous model/slip velocity/solid-liquid two-phase/w ear characteristic分类
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林鹏,刘梅清,燕浩,吴远为..轴流泵固液两相数值模拟及磨损特性研究[J].华中科技大学学报（自然科学版）,2015,(3):32-36,5.基金项目
国家自然科学基金资助项目（50879062，51409197）；湖北省水利重点科研项目（HBSKL201307）． （）
