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

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.

关键词： Axial-flow pump hydraulic performance unsteady flow curvature corrected filter-based turbulent model CFD

作者: Rui Zhang Hongxun Chen Hui Xu Jiangang Feng Xiaosheng Wang Tong Mou

作者单位: College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, China Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai, China

会议类型: 国际会议

会议名称: The Second Conference of Global Chinese Scholars on Hydrodynamics(第二届全球华人水动学学术会议)

会议地点: 江苏 无锡

会议语种:英文

页码: 536-542

在线出版日期: 2016-11-11（万方平台首次上网日期，不代表论文的发表时间）