Mathematical model of the two-phase flow in a vertical well with an electric centrifugal pump located in the permafrost region

Мусакаев, Н. Г.; Borodin, S. L.

doi:10.1007/s00231-015-1614-3

Cited by 20 publications

(1 citation statement)

References 10 publications

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“…Zhang et al (2017) conducted an experimental study on the internal flow characteristics of the side-channel pump under the gas-liquid two-phase flow conditions and analyzed the influence of the blade suction angle on the head and efficiency under different inlet air volume fractions. Musakaev and Borodin (2016) established a two-phase flow model based on a centrifugal pump located in a permafrost zone, which is used to predict the flow field parameters of the two-phase flow inside the centrifugal pump, and added the influence of temperature on the gas-liquid two-phase flow.…”

Section: Introductionmentioning

confidence: 99%

Flow Characteristic Analysis of the Self-Priming Pump Based on the Population Balance Model

Chang

Hong²,

Yu³

et al. 2022

Front. Energy Res.

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Self-priming pumps, as important two-phase fluid machinery, are widely used in disaster relief and emergency fields. The flow characteristics of the air–liquid two-phase fluid play an essential role in the self-priming pump performance. However, the traditional simulation employed the single-diameter bubbles for analysis, which cannot reflect the internal flow field characteristics. Therefore, in this article, the Population Balance Model (PBM) is employed, which divides the bubble into different diameter groups, and the collision and coalescence between the bubble are considered in the calculation to investigate the influence of different air voids and flow conditions on the performance self-priming centrifugal pumps. The result shows that the frequency of bubble coalescence at the shroud is higher, which is conducive to the formation of large-sized bubbles. Meanwhile, the increment of flow conditions has a significant effect on reducing the pressure pulsation of the gas–liquid two-phase flow, while the improvement of the air voids not only destroys the instability and asymmetry of the internal flow of the two-phase flow but also aggravates the amplitude of pressure pulsation, increasing the surface loading of the blade and radial force. Therefore, this article can provide a certain theoretical reference for the study of air–liquid two-phase flow characteristics of self-priming centrifugal pumps.

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Section: Introductionmentioning

confidence: 99%