CFD flow analysis in the centrifugal vortex pump

Mihalić, Tihomir and Guzović, Zvonimir and Predin, Andrej (2014) CFD flow analysis in the centrifugal vortex pump. = CFD flow analysis in the centrifugal vortex pump. International Journal of Numerical Methods for Heat and Fluid Flow, 24 (3). pp. 545-562. ISSN 0961-5539. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q2 (2014). Točan broj autora: 3.

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Official URL: http://www.emeraldinsight.com/doi/abs/10.1108/HFF-...

Abstract

Purpose - Aging of the oil wells leads to a decrease in reservoir pressure and also to an increase in the water, gas and abrasive particles content. Therefore, there is a need for the oil pumps exploitation characteristics improvements. This paper aims to generate a valuable numerical model which will provide a useful tool to study various cases. Design/methodology/approach - Computational fluid dynamics (CFD) analysis of the generation of so-called coherent structures of eddies and turbulence in the peripheral area of the vortex rotor mounted at the back side of centrifugal rotor was undertaken. After detailed analysis of the influence of the used turbulence models on the results, a hybrid turbulent model Detached Eddies Simulation (DES) was chosen as the most suitable. Findings - Numerical control volume method with unsteady solver and DES turbulence model was proven to be valuable tool for flow analysis in the centrifugal pumps. Having in mind that DES turbulence model consumes much less computational time than large eddies turbulence model, this is a very useful fact that resulted from this research. Practical implications - The proven numerical model is robust and reliable enough to become a standard method in simulating flow and other physical phenomena occurring in centrifugal pumps and similar turbo machines. This makes it possible to easily research different factors that influence their performances. Originality/value - Comprehensive experimental and CFD study was performed which made it possible to conduct detailed validation and verification of described CFD model. Copyright © 2014 Emerald Group Publishing Limited. All rights reserved.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): Centrifugal pumps; Centrifugation; Computer simulation; Numerical models; Oil wells; Tools; Turbulence models; Unsteady flow; Abrasive particles; Coherent structure; Computational fluid dynamics analysis; Design/methodology/approach; Energy transformation; Reservoir pressures; Validation and verification; Vortex pumps; Computational fluid dynamics
Subjects: NATURAL SCIENCES > Physics
TECHNICAL SCIENCE > Mechanical Engineering
TECHNICAL SCIENCE > Basic technical sciences
Divisions: 500 Department of Energy, Power Engineering and Environment > 520 Chair of Fluid Mechanics
500 Department of Energy, Power Engineering and Environment > 530 Chair of Turbomachinery
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Quartiles: Q2 (2014)
Date Deposited: 28 May 2015 09:11
Last Modified: 28 Mar 2017 08:51
URI: http://repozitorij.fsb.hr/id/eprint/4257

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