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The Effect of an Electric Field on Behaviour of Thermally Induced Bubble in Liquid Nitrogen

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 At 16th IEEE International Conference on Dielectric Liquids, ICDL 2008, France. 30 Jun - 03 Jul 2008. , pp. 22-25.

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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More information

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, 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

Catalogue record

Date deposited: 07 Jul 2008 12:38
Last modified: 18 Jul 2017 07:20

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Contributors

Author: P Wang
Author: D J Swaffield
Author: P L Lewin
Author: G Chen

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