Numerical calculation of the influence of typical particle properties on pump as turbine
参考中译:典型颗粒性质对涡轮泵影响的数值计算


          

刊名：Journal of the Brazilian Society of Mechanical Sciences and Engineering
作者：Zhao, Yanjuan（Quzhou Univ, Coll Mech Engn, Quzhou, Peoples R China）
Tong, Jiangbo（Hunan Univ Technol, Sch Mech Engn, Zhuzhou, Peoples R China）
Zhang, Yuliang（Quzhou Univ, Coll Mech Engn, Quzhou, Peoples R China）
Cheng, Liang（Quzhou Univ, Coll Mech Engn, Quzhou, Peoples R China）
Guo, Xiaomei（Zhejiang Univ Water Resource & Elect Power, Sch Mech & Automot Engn, Hangzhou, Peoples R China）
Han, AndaZhao, Yanjuan（Zhejiang Tiande Pump Co Ltd, Wenzhou, Peoples R ChinaQuzhou Univ, Coll Mech Engn, Quzhou, Peoples R China）
Tong, Jiangbo（Hunan Univ Technol, Sch Mech Engn, Zhuzhou, Peoples R China）
Zhang, Yuliang（Quzhou Univ, Coll Mech Engn, Quzhou, Peoples R China）
Cheng, Liang（Quzhou Univ, Coll Mech Engn, Quzhou, Peoples R China）
Guo, Xiaomei（Zhejiang Univ Water Resource & Elect Power, Sch Mech & Automot Engn, Hangzhou, Peoples R China）
Han, Anda（Zhejiang Tiande Pump Co Ltd, Wenzhou, Peoples R China）
刊号：780E0017
ISSN：1678-5878
出版年：2025
年卷期：2025, vol.47, no.5
页码：248-1--248-26
总页数：26
分类号：TH11
关键词：Pump as turbine；；Solid-liquid two-phase flow；；Particle property；；External characteristic；；Pressure pulsation
参考中译：泵作涡轮机;;固液两相流;;颗粒性质;;外部特性;压力脉动
语种：eng
文摘：Pump reversal as a turbine has become an effective way to recover surplus liquid energy at present. In this paper, to study the influence of solid particles in the incoming medium on pump as turbine, based on mixture model, the full three-dimensional internal flow of a single stage and suction centrifugal pump reversed as turbine was numerically calculated, and the effects of three typical particle properties (density, concentration, and diameter) on the key performance parameters, including hydraulic turbine head, energy recovery efficiency, and radial force, were obtained under the rated working condition. The results show that the axial force on the pump as turbine impeller under solid-liquid two-phase flow increases and the radial force decreases compared to the single-phase clear-water flow. Each external characteristic parameter shows a different trend with each particle property changes. The axial force increases with the density, concentration, and diameter of particles. Under low particle density, low concentration, and small particle size, the radial force acting on impeller is smaller.
参考中译：目前，泵反向作为涡轮机已成为回收剩余液体能的有效方式。本文为研究来液中固体颗粒对涡轮泵的影响，基于混合物模型，对单级吸入式泵反向涡轮的全三维内部流动进行了数值计算，并研究了三种典型颗粒性质的影响（密度、浓度和直径）对关键性能参数，包括水力涡轮机头、能量回收效率和辐射力，是在指定工作条件下获得的。研究结果表明，与单相清水流相比，固液两相流下涡轮泵的轴向力增大，而轴向力减小。各个外部特征参数随着各个颗粒性质的变化而呈现不同的趋势。轴向力随着颗粒的密度、浓度和直径的增加而增加。在低颗粒密度、低浓度、小颗粒尺寸的情况下，作用在叶片上的轴向力较小。



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