The Effect of an Electric Field on Behaviour of Thermally Induced Bubble in Liquid Nitrogen
The Effect of an Electric Field on Behaviour of Thermally Induced Bubble in Liquid Nitrogen
The effect of a dc uniform electric field on the behaviour of bubbles in liquid nitrogen such as their growth, deformation and departure frequency has been experimentally investigated. The experiment was performed using a stainless steel mesh-plate electrode. The experimental results show that (1) prolate spherical bubbles are formed in the direction of electric field and bubble deformation increases with increasing applied voltage, (2) the bubble departure frequency decreases and the departure volume increases with increasing electric field strength, (3) any effect of the electric field polarity is not obvious. For clarifying these phenomena, the electric field distribution around a bubble has been simulated using the finite element analysis (FEA) method and the electric force acting on bubble calculated numerically. In addition, the effect of changes to thermal bubble behaviour on boiling heat transfer is also discussed. Obtained results may lay a foundation for exploring the mechanism of electrohydrodynamic (EHD) enhancement of boiling heat transfer of liquid nitrogen.
978-1-4244-1586-1
22-25
Wang, P
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Swaffield, D J
31f6f52e-fb48-44f9-99d3-3cbd2539f1b9
Lewin, P L
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
30 June 2008
Wang, P
9cbcc0c1-a742-4b52-94ec-58632717c9ed
Swaffield, D J
31f6f52e-fb48-44f9-99d3-3cbd2539f1b9
Lewin, P L
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Wang, P, Swaffield, D J, Lewin, P L and Chen, G
(2008)
The Effect of an Electric Field on Behaviour of Thermally Induced Bubble in Liquid Nitrogen.
16th IEEE International Conference on Dielectric Liquids, ICDL 2008, Poitiers, France.
30 Jun - 03 Jul 2008.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The effect of a dc uniform electric field on the behaviour of bubbles in liquid nitrogen such as their growth, deformation and departure frequency has been experimentally investigated. The experiment was performed using a stainless steel mesh-plate electrode. The experimental results show that (1) prolate spherical bubbles are formed in the direction of electric field and bubble deformation increases with increasing applied voltage, (2) the bubble departure frequency decreases and the departure volume increases with increasing electric field strength, (3) any effect of the electric field polarity is not obvious. For clarifying these phenomena, the electric field distribution around a bubble has been simulated using the finite element analysis (FEA) method and the electric force acting on bubble calculated numerically. In addition, the effect of changes to thermal bubble behaviour on boiling heat transfer is also discussed. Obtained results may lay a foundation for exploring the mechanism of electrohydrodynamic (EHD) enhancement of boiling heat transfer of liquid nitrogen.
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Published date: 30 June 2008
Additional Information:
Event Dates: 30 June - 3 July, 2008
Venue - Dates:
16th IEEE International Conference on Dielectric Liquids, ICDL 2008, Poitiers, France, 2008-06-30 - 2008-07-03
Organisations:
Electronics & Computer Science, EEE
Identifiers
Local EPrints ID: 266065
URI: http://eprints.soton.ac.uk/id/eprint/266065
ISBN: 978-1-4244-1586-1
PURE UUID: 64311509-49ed-4d98-8dfd-fd860a64ff91
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Date deposited: 07 Jul 2008 12:38
Last modified: 15 Mar 2024 02:43
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Contributors
Author:
P Wang
Author:
D J Swaffield
Author:
P L Lewin
Author:
G Chen
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