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 | , , , | 
| Format | Journal Article | 
| Language | Chinese | 
| 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 | |
| Online Access | Get full text | 
| ISSN | 1671-7775 | 
| DOI | 10.3969/j.issn.1671-7775.2019.05.006 | 
Cover
| 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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| Author_FL | CAO Weidong 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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| Title | 半开式切割泵固液两相流动与特性分析 | 
    
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