NDLI: Detailed flow characteristic analysis of a three-stage centrifugal pump at design and off-design conditions

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Detailed flow characteristic analysis of a three-stage centrifugal pump at design and off-design conditions

Content Provider	Scilit
Author	Kim, Jin-Hyuk Cho, Bo-Min Kim, Sung Lee, Yong-Kab Choi, Young-Seok
Copyright Year	2019
Description	Journal: Iop Conference Series: Earth and Environmental Science This paper presents a detailed analysis of the internal flow characteristics of a three-stage centrifugal pump at design and off-design conditions. Numerical analysis is conducted by solving three-dimensional steady and unsteady Reynolds-averaged Navier – Stokes equations with the shear stress transport (SST) turbulence model. The results of steady and unsteady numerical analyses are analyzed and compared with experimental data throughout the flow region. Moreover, a reattachment modification in the SST turbulence model is applied to better capture the characteristics of flow separations arising from boundary layers reattaching at design and off-design conditions. The results show that the unsteady numerical results are in good agreement with the experimental data. Additionally, hydraulic performance with and without the reattachment modification is similar throughout entire flow region whereas the respective flow characteristics for each impeller component are considerably different, especially at low-flow-rate conditions.
Related Links	https://iopscience.iop.org/article/10.1088/1755-1315/240/9/092004/pdf
ISSN	17551307
e-ISSN	17551315
DOI	10.1088/1755-1315/240/9/092004
Journal	Iop Conference Series: Earth and Environmental Science
Issue Number	9
Volume Number	240
Language	English
Publisher	IOP Publishing
Publisher Date	2019-03-27
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Earth and Environmental Science Flow Characteristics Design Conditions
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Physics and Astronomy Environmental Science

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