| 出口角对离心泵内固液两相流动影响 |
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| 引用本文： | 刘栋,杨敏官,董祥.出口角对离心泵内固液两相流动影响[J].现代铸铁,2009(1). |
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| 作者姓名： | 刘栋 杨敏官 董祥 |
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| 作者单位： | 江苏大学能源与动力工程学院 |
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| 基金项目： | 国家自然科学基金资助项目(50476068) |
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| 摘 要： | 采用欧拉多相流模型、标准k-ε湍流模型与SIMPLEC算法,应用计算流体力学软件Fluent,对3台不同叶片出口安放角的离心泵内的固液两相湍流进行了数值模拟,分析了叶片出口安放角对泵内部固液两相流场的影响.计算结果表明:在叶轮流道内,固体颗粒的相对运动方向比液相更偏向叶片压力面,大叶片出口角叶轮内两相速度的夹角较大.通过对比不同叶轮内压力分布及固体颗粒体积浓度分布,得出以下结论:大出口安放角的叶轮压力面附近聚集了更多的颗粒,导致大量颗粒与叶片尾部的压力面相撞;叶片出口安放角增大使得叶轮出口压力增大.
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| 关 键 词： | 离心泵 叶轮 固液两相流 数值模拟 |
Effects of impeller outlet angle on solid-liquid two phase flow in centrifugal pump |
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| Liu Dong; Yang Minguan; Dong Xiang.Effects of impeller outlet angle on solid-liquid two phase flow in centrifugal pump[J].Modern Cast Iron,2009(1). |
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| Authors: | Liu Dong; Yang Minguan; Dong Xiang |
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| Affiliation: | Liu Dong; Yang Minguan; Dong Xiang(School of Energy and Power Engineering; Jiangsu University; Zhenjiang; Jiangsu 212013; China); |
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| Abstract: | To study the solid-liquid two-phase flow mechanism in centrifugal pump with different impeller outlet angles,three-dimensional simulation was performed for the solid-liquid two-phase turbulent flow in this kind pump by using Fluent software with Eulerian model,SIMPLEC algorithm and standard k-ε turbulence model.The effects of impeller outlet angle on the solid-liquid two phase flow in the centrifugal pump were fully analyzed.The result shows that the direction of relative motion of particles is towards the ... |
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| Keywords: | centrifugal pump impeller solid-liquid two-phase flow numerical simulation |
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