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Effect of gas volume fraction on the vortex motion within the oil-gas multiphase pump

Shi, GT; Wang, ZW; Luo, K; Liu, Y; Jiang, XP; (2018) Effect of gas volume fraction on the vortex motion within the oil-gas multiphase pump. In: IOP Conference Series: Earth and Environmental Science. (pp. 012002). IOP: Beijing, China. Green open access

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Abstract

In order to research the regular pattern of the vortex within the oil-gas multiphase pump with the gas volume fraction changes, the standard K-epsilon turbulence model is selected, the gas-liquid two-phase flow field within the multiphase pump is calculated by the CFD software under the different gas volume fraction, the regular pattern of the vortex motion within the multiphase pump is analyzed under the different gas volume fraction. The results show that, from the impeller hub to the rim, the vortex in the guide vane is gradually become smaller, the vortex within the impeller is gradually obvious, and with the increase of the gas volume fraction, the flow separation, the backflow and the vortex phenomenon within the impeller and the guide vane are gradually increased. It is also found that the flow separation has a greater influence on the turbulent dissipation within the whole flow field, that is, the more serious the area of off flow, the greater the energy loss. The results provide an important theoretical basis for the optimal design of the structure of oil-gas multiphase pump.

Type: Proceedings paper
Title: Effect of gas volume fraction on the vortex motion within the oil-gas multiphase pump
Event: Asian Working Group- IAHR's Symposium on Hydraulic Machinery and Systems
Location: Beijing, China
Dates: 16-19 November 2017
Open access status: An open access version is available from UCL Discovery
DOI: 10.1088/1755-1315/163/1/012002
Publisher version: https://doi.org/10.1088/1755-1315/163/1/012002
Language: English
Additional information: Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. https://creativecommons.org/licenses/by/3.0/
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: http://discovery.ucl.ac.uk/id/eprint/10069551
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