半开式切割泵固液两相流动与特性分析

TH311; 为深入了解半开式切割泵内部固液两相流动状态,基于ANSYS CFX软件,采用标准k-ε湍流模型,在不同固相体积分数和不同流量工况下,研究了叶轮叶片不同位置处的固相体积分布及速度分布,以及切割泵旋转刀处的固相体积分布及速度分布,并对磨损情况进行相应预测.分析了固相和液相对于内流场的影响.结果表明:分布在叶片压力面的固相速度整体小于吸力面,而固相体积分数却大于吸力面;叶片尾部固相速度最大,叶片头部固相体积分数最大;对于旋转刀,位于工作面旋转刀出口处和背面靠近转轴处的固相速度较大,位于工作面靠近转轴处固相体积分数较大,因而磨损预计较为严重,而旋转刀背面整体体积分数较小;不同流量工况对于...

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Published in江苏大学学报(自然科学版) Vol. 40; no. 5; pp. 531 - 537
Main Authors 曹卫东, 姜昕, 张骞, 徐玉敏
Format Journal Article
LanguageChinese
Published 江苏大学流体机械工程技术研究中心,江苏镇江,212013 01.09.2019
Subjects
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ISSN1671-7775
DOI10.3969/j.issn.1671-7775.2019.05.006

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Abstract TH311; 为深入了解半开式切割泵内部固液两相流动状态,基于ANSYS CFX软件,采用标准k-ε湍流模型,在不同固相体积分数和不同流量工况下,研究了叶轮叶片不同位置处的固相体积分布及速度分布,以及切割泵旋转刀处的固相体积分布及速度分布,并对磨损情况进行相应预测.分析了固相和液相对于内流场的影响.结果表明:分布在叶片压力面的固相速度整体小于吸力面,而固相体积分数却大于吸力面;叶片尾部固相速度最大,叶片头部固相体积分数最大;对于旋转刀,位于工作面旋转刀出口处和背面靠近转轴处的固相速度较大,位于工作面靠近转轴处固相体积分数较大,因而磨损预计较为严重,而旋转刀背面整体体积分数较小;不同流量工况对于压力分布、速度分布、固相分布有较明显的影响.
AbstractList TH311; 为深入了解半开式切割泵内部固液两相流动状态,基于ANSYS CFX软件,采用标准k-ε湍流模型,在不同固相体积分数和不同流量工况下,研究了叶轮叶片不同位置处的固相体积分布及速度分布,以及切割泵旋转刀处的固相体积分布及速度分布,并对磨损情况进行相应预测.分析了固相和液相对于内流场的影响.结果表明:分布在叶片压力面的固相速度整体小于吸力面,而固相体积分数却大于吸力面;叶片尾部固相速度最大,叶片头部固相体积分数最大;对于旋转刀,位于工作面旋转刀出口处和背面靠近转轴处的固相速度较大,位于工作面靠近转轴处固相体积分数较大,因而磨损预计较为严重,而旋转刀背面整体体积分数较小;不同流量工况对于压力分布、速度分布、固相分布有较明显的影响.
Author 姜昕
张骞
徐玉敏
曹卫东
AuthorAffiliation 江苏大学流体机械工程技术研究中心,江苏镇江,212013
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XU Yumin
JIANG Xin
ZHANG Qian
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Keywords 旋转刀
数值计算
叶片
切割泵
固液两相流
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Snippet TH311; 为深入了解半开式切割泵内部固液两相流动状态,基于ANSYS CFX软件,采用标准k-ε湍流模型,在不同固相体积分数和不同流量工况下,研究了叶轮叶片不同位置处的固相体积分...
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Title 半开式切割泵固液两相流动与特性分析
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