A Numerical Study on Labyrinth Screw Pump (LSP) Performance under Viscous Fluid Flow

Wenqi Ke, Hao Zeng, Zhuoyu Wang (), Hong Yu (), Yaxin Liu, Danzhu Zheng, Jianjun Zhu and Haiwen Zhu ()
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Wenqi Ke: State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 102206, China
Hao Zeng: State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 102206, China
Zhuoyu Wang: College of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, Beijing 102249, China
Hong Yu: College of Elementary Medicine, North China University of Science and Technology, Tangshan 063000, China
Yaxin Liu: McDougall School of Petroleum Engineering, The University of Tulsa, Tulsa, OK 74104, USA
Danzhu Zheng: McDougall School of Petroleum Engineering, The University of Tulsa, Tulsa, OK 74104, USA
Jianjun Zhu: College of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, Beijing 102249, China
Haiwen Zhu: College of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, Beijing 102249, China

Energies, 2023, vol. 16, issue 16, 1-15

Abstract: In this study, fluid viscosity effects on LSP performance in terms of boosting pressure were numerically investigated. A water–glycerin mixture with different concentrations corresponding to varying apparent viscosities was flowed through an in-house manufactured LSP under various flow conditions, e.g., changing flow rates, rotational speeds, and fluid viscosities. The pressure increment between the intake and discharge of the LSP was recorded using the differential pressure transducer. The same pump geometries, fluid properties and flow conditions were incorporated into the numerical configurations, where three-dimensional (3D), steady-state, Reynolds-averaged Navier–Stokes (RANS) equations with a standard SST (shear stress transport) turbulence model were solved by a commercial CFD code. With the high-quality poly-hexcore grids, the simulated pressure increment was compared with the corresponding experimental measurement. The internal flow structures and characteristics within the cavities contained by the LSP impeller and diffuser were also analyzed. The good agreement between the numerical results against the experimental data verified the methodology adopted in this study.

Keywords: labyrinth screw pump; high viscosity flow; CFD; fluid mechanics (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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