Numerical and experimental investigation of slanted axial-flow pumping system

被引：0

作者：

Yang, Fan ^{[1
,2
]}

Liu, Chao ^{[1
,2
]}

机构：

[1] College of water resources and Energy power Engineering, Yangzhou University, Yangzhou - Jiangsu

[2] Hydrodynamic Engineering Laboratory of Jiangsu Province, Yangzhou-Jiangsu

来源：

Yang, F. (sqyzyangfan@126.com) | 1600年 / International Hellenic University - School of Science卷 / 06期

关键词：

Hydraulic moment; Hydraulic performance; Impeller; Model test; Numerical investigation; Pumping system;

D O I：

10.25103/jestr.062.14

中图分类号：

学科分类号：

摘要：

The Investigation of the three-dimensional (3D) fluid flow inside a slanted axial pumping system, based on the Reynolds time-averaged Navier-Stokes equations and the RNG k-ε turbulent flow model, applying the multiple reference frames. The flow detail of whole slanted axial pumping system is attained. The relation between hydraulic performance of outlet sections with rotating impeller and installation height of pumping system and the stress distribution of impeller is analyzed, so is the relative velocity distribution near the airfoil cross sections under the designed condition. The hydraulic moment under different conditions was calculated based on the numerical results, and the changing features of hydraulic moment on blades with flow rates are analyzed. The reference nominal height of pump is put forward. The comparison of simulation results and the experiment data shows that the calculation performance closes agrees with the experiment results at the best efficiency and designed operating conditions, but under the condition of low rate, deviations exist between the two results. Using CFD method to simulate the internal flow field of slanted axial pumping system can provide the basis for the hydraulic design of the slanted axial pumping system or its optimization. © 2013 Kavala Institute of Technology.

引用

页码：62 / 68

页数：6

共 14 条

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