Email this article Investigation of cavitation properties of a mobile pumping unit
- Authors: Konshin D.S.1, Konkeyev E.M.2, Protopopov A.A.3, Petrov A.I.3
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Affiliations:
- CNP Rus
- OTKRITIE Bank (VTB Group)
- Bauman Moscow State Technical University
- Issue: Vol 17, No 1 (2023)
- Pages: 17-24
- Section: Hydraulic and pneumatic systems
- URL: https://journals.rcsi.science/2074-0530/article/view/131452
- DOI: https://doi.org/10.17816/2074-0530-321708
- ID: 131452
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Abstract
BACKGROUND: In the introduction to the article, a review of publications on cavitation, vibration and noise in centrifugal pumps, including the issues of cavitation erosion of impellers, is carried out.
AIMS: Comparison of cavitation properties of a centrifugal pump of a mobile pumping unit with and without a pre-engineered screw by computational fluid dynamic (CFD) modeling.
METHODS: The calculation of the flow part of a pre-injected impeller stage is described and the CFD model of its hydrodynamic simulation is described. In the CFD model, Navier-Stokes equations averaged over the Reynolds number and the working fluid continuity equation were used. A two-phase fluid model was used to simulate cavitation.
RESULTS: The final results of the calculations carried out in the above models are presented. Calculations were obtained for a pump with impeller with and without an upstream stage (screw). For the impeller without a screw, the cavitation margin of 4.7 m was obtained, which is critical for such a pump. For a pump with an impeller with an upstream auger the cavitation margin is 1,7 m, that is much better and allows to show efficiency of such solution.
CONCLUSIONS: The requirement of hydrodynamic modeling for selection of optimal flow part of centrifugal pump to improve its cavitation characteristics is formulated.
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##article.viewOnOriginalSite##About the authors
Dmitry S. Konshin
CNP Rus
Email: konmitya@yandex.ru
ORCID iD: 0009-0002-3744-1224
Master, Specialist
Russian Federation, MoscowEvgeniy M. Konkeyev
OTKRITIE Bank (VTB Group)
Email: evgeniikonkeev@gmail.com
ORCID iD: 0009-0002-4518-8783
Master, Specialist
Russian Federation, MoscowAlexander A. Protopopov
Bauman Moscow State Technical University
Author for correspondence.
Email: proforg6@yandex.ru
ORCID iD: 0000-0002-6069-7730
SPIN-code: 4175-5118
Cand. Sci. (Phys.-Math.), Associate Professor of the Hydromechanics, Hydromachines and Hydro-Pneumoautomatics Department
Russian Federation, MoscowAlexey I. Petrov
Bauman Moscow State Technical University
Email: alex_i_petrov@mail.ru
ORCID iD: 0000-0001-8048-8170
SPIN-code: 7172-0320
Cand. Sci. (Tech.), Associate Professor of the Hydromechanics, Hydromachines and Hydro-Pneumoautomatics Department
Russian Federation, MoscowReferences
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