Numerical analysis of the unsteady flow in an axial-flow pump at design and off-design conditions

被引：0
|
作者：
Zhang, Rui [1 ]
Chen, Hongxun [2 ]
Xu, Hui [1 ]
Feng, Jiangang [1 ]
Wang, Xiaosheng [1 ]
Mou, Tong [1 ]
机构：
[1] Hohai Univ, Coll Water Conservancy & Hydropower Engn, Nanjing, Jiangsu, Peoples R China
[2] Shanghai Univ, Shanghai Inst Appl Math & Mech, Shanghai, Peoples R China
来源：
PROCEEDINGS OF THE SECOND CONFERENCE OF GLOBAL CHINESE SCHOLARS ON HYDRODYNAMICS (CCSH'2016), VOLS 1 & 2 | 2016年
关键词：
Axial-flow pump; hydraulic performance; unsteady flow; curvature corrected filter-based turbulent model; CFD;
D O I：
暂无
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The internal flow of an axial-flow pump has been simulated by using the curvature corrected filter-based turbulent model (FBM-CC). Compared with the experimental results, the FBM-CC could effectively predict the hydraulic performance of the pump. The complex turbulent flow fields in the axial-flow pump at three typical flow rate conditions have been investigated. The numerical results show that the serious blockage in the impeller passage, which caused by the prerotation at the upstream of impeller, the separated flow on the blade and the reverse flow from the diffuser, leading to the formation of saddle zone at the off-design condition.
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页码：536 / 542
页数：7
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