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Browse Journals & Magazines > Applied Physics Letters ...> Volume:93 Issue:15 Help

Heat flux characteristics in an atmospheric double arc argon plasma jet

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5 Author(s)
Xin Tu ; Zhejiang University, Hangzhou 310027, People’s Republic of China ; Liang Yu ; Jianhua Yan ; Kefa Cen
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Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.2998579 

In this study, the axial evolution of heat flux excited by a double arc argon plasma jet impinging on a flat plate is determined, while the nonstationary behavior of the heat flux is investigated by combined means of the fast Fourier transform, Wigner distribution, and short-time Fourier transform. Two frequency groups (≪1 and 2–10 kHz) are identified in both the Fourier spectrum and the time-frequency distributions, which suggest that the nature of fluctuations in the heat flux is strongly associated with the dynamic behavior of the plasma arc and the engulfment of ambient air into different plasma jet regions.

Published in:
Applied Physics Letters  (Volume:93 ,  Issue: 15 )

Date of Publication: Oct 2008

Page(s):
151501 - 151501-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.2998579
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Oct 2008

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