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Cylindrical RF discharge with free boundary at atmospheric pressure

Sutton, Y.; Naidis, G. V.; Johnson, P. C.; Moore, J.; Sharp, D. and Braithwaite, N. St.J (2009). Cylindrical RF discharge with free boundary at atmospheric pressure. In: International Conference on Phenomena in Ionized Gases, 17-19 July 2009, Cancun Mexico.

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Abstract

A non-equilibrium electrical discharge, driven at 325 kHz in atmospheric pressure ambient air can be used as an acoustic source. Electrical and optical data for the unmodulated, free-burning, vertical arc discharge are compared with a fluid model based on the dominant collision processes in nitrogen –oxygen mixtures. For a 15 mm long, 20 mA discharge, observations and the model reveal that the gas temperature is ~3000 K, the axial field is ~100 kV m-1 and the electron density is ~ 2  1017 m–3; the column radius is ~1 mm in terms of optical emission, but the gas temperature width is about three times broader

Item Type: Conference Item
Copyright Holders: 2009 Unknown
Project Funding Details:
Funded Project NameProject IDFunding Body
Not SetNot SetBowers and Wilkins Ltd
Academic Unit/Department: Mathematics, Computing and Technology > Engineering & Innovation
Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
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Item ID: 27048
Depositing User: Users 7972 not found.
Date Deposited: 25 Jan 2011 10:49
Last Modified: 25 Nov 2014 10:16
URI: http://oro.open.ac.uk/id/eprint/27048
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