Measurement of a Three-Dimensional Rotating Flow Field and Analysis of the Internal Oil Droplet Migration

Lei Xing, Shuai Guan, Yang Gao () and Minghu Jiang
Additional contact information
Lei Xing: School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, China
Shuai Guan: School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, China
Yang Gao: China Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100000, China
Minghu Jiang: School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, China

Energies, 2023, vol. 16, issue 13, 1-17

Abstract: Investigating the motion of discrete oil droplets in a rotating flow field can provide a theoretical basis for optimizing the flow field and structural parameters of hydrocyclones and centrifugal separation equipment. In the present work, the particle image velocimetry (PIV) method was applied to study the velocity distribution of a three-dimensional axial-rotor-driven rotating flow field and the influence of the velocity distribution of different rotor speeds on the flow field. The radial migration of oil droplets with different particle sizes in the rotating flow field was visually analyzed using high-speed video (HSV). The results showed that the oil droplets with the same radial position had diameters of 2.677 and 4.391 mm, whereas the movement times to the axis were 0.902 and 0.752 s. The larger the oil droplet size, the shorter the time to move to the axial center of the rotating flow field. The radial velocities of oil droplets with diameters of 2.677 and 2.714 mm were 0.0221 and 0.02 m·s −1 , respectively. In addition, a mathematical expression was established between the radial migration time and the oil droplet size in the rotating flow field. The accuracy of the proposed expression was verified using experiments.

Keywords: rotating flow field; oil droplet; PIV; velocity; diameter (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:

Downloads: (external link)
https://www.mdpi.com/1996-1073/16/13/5094/pdf (application/pdf)
https://www.mdpi.com/1996-1073/16/13/5094/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:16:y:2023:i:13:p:5094-:d:1184820

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().