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Thermal Bubble Motion in Liquid Nitrogen under Nonuniform Electric Fields

Record type: Article

This paper describes an experimental study into the influence of a non-uniform electric field on bubble motion and behavior in liquid nitrogen. The electric field effect on bubble motion as it rises due to buoyancy within applied dc electric fields is quantitatively investigated using a rod-plane gap. Thermal bubble motion and bubble collision with the plane electrode processes were observed in these experiments. The experimental results show that dc non-uniform electric fields have an obvious effect on bubble behavior; bubbles move closer to the plane electrode away from a higher field region to a lower one, irrespective of electric field direction. A model based on analysis of the forces acting on the bubble has been developed. This set of differential equations describes the motion of a spherical bubble in the rod-plane gap with voltage and can be solved numerically to determine bubble trajectory. Compared to experimental data, the theoretical prediction is in very good agreement.

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Citation

Wang, P, Swaffield, D J, Lewin, P L and Chen, G (2008) Thermal Bubble Motion in Liquid Nitrogen under Nonuniform Electric Fields IEEE Transactions on Dielectrics & Electrical Insulation, 15, (3), pp. 626-634.

More information

Published date: 15 June 2008
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 265955
URI: http://eprints.soton.ac.uk/id/eprint/265955
ISSN: 1070-9878
PURE UUID: e4b7e63d-fb77-4051-a9a3-99698500ad90

Catalogue record

Date deposited: 16 Jun 2008 16:50
Last modified: 18 Jul 2017 07:21

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Contributors

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

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