Free-surface flow of liquid oxygen under non-uniform magnetic field
File(s)
Author(s)
Bao, Shi-Ran
Zhang, Rui-Ping
Wang, Kai
Zhi, Xiao-Qin
Qiu, Li-Min
Type
Journal Article
Abstract
The paramagnetic property of oxygen makes it possible to control the two-phase flow at cryogenic temperatures by non-uniform magnetic fields. The free-surface flow of vapor-liquid oxygen in a rectangular channel was numerically studied using the two-dimensional phase field method. The effects of magnetic flux density and inlet velocity on the interface deformation, flow pattern and pressure drop were systematically revealed. The liquid level near the high-magnetic channel center was lifted upward by the inhomogeneous magnetic field. The interface height difference increased almost linearly with the magnetic force. For all inlet velocities, pressure drop under 0.25 T was reduced by 7–9% due to the expanded local cross-sectional area, compared to that without magnetic field. This work demonstrates the effectiveness of employing non-uniform magnetic field to control the free-surface flow of liquid oxygen. This non-contact method may be used for promoting the interface renewal, reducing the flow resistance, and improving the flow uniformity in the cryogenic distillation column, which may provide a potential for enhancing the operating efficiency of cryogenic air separation.
Date Issued
2017-01-01
Date Acceptance
2016-12-09
Citation
CRYOGENICS, 2017, 81, pp.76-82
ISSN
0011-2275
Publisher
ELSEVIER SCI LTD
Start Page
76
End Page
82
Journal / Book Title
CRYOGENICS
Volume
81
Copyright Statement
© 2016 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000393258700010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Thermodynamics
Physics, Applied
Physics
Free-surface flow
Magnetic field
Paramagnet
Liquid oxygen
INTERFACE DEFORMATION
VELOCITY
WATER
Publication Status
Published
Date Publish Online
2016-12-11