Resonant Excitation of Boundary Layer Instability of DC Arc Plasma Jet by Current Modulation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F11%3A00367145" target="_blank" >RIV/61389021:_____/11:00367145 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s11090-011-9317-0" target="_blank" >http://dx.doi.org/10.1007/s11090-011-9317-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11090-011-9317-0" target="_blank" >10.1007/s11090-011-9317-0</a>
Alternative languages
Result language
angličtina
Original language name
Resonant Excitation of Boundary Layer Instability of DC Arc Plasma Jet by Current Modulation
Original language description
Instabilities of thermal plasma jets were studied on the basis of analysis of plasma radiation fluctuations recorded by an array of high frequency photodiodes. Characteristic frequencies of jet oscillations were found and spatial distribution of amplitude of plasma fluctuations was determined. The influence of arc current ripple on plasma instabilities was investigated for two types of power supply - classical thyristor controlled unit with the frequency of the current ripple 300 Hz and the rectifier with the high frequency converter and frequency of the current modulation 30 kHz. Generation of boundary layer instability with the current modulation frequency and its harmonics was proved using fast Fourier transform, contour plots and phase portraits. It was found that the character of fluctuations of plasma jet was substantially influenced by current ripple with the frequency or its harmonics close to the frequency of oscillations generated by boundary layer instability.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BL - Plasma physics and discharge through gases
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP205%2F11%2F2070" target="_blank" >GAP205/11/2070: Interaction of steam plasma jet with solids, liquids and gases in low pressure and gasification reactors</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Plasma Chemistry and Plasma Processing
ISSN
0272-4324
e-ISSN
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Volume of the periodical
31
Issue of the periodical within the volume
6
Country of publishing house
DE - GERMANY
Number of pages
12
Pages from-to
827-838
UT code for WoS article
000300101200003
EID of the result in the Scopus database
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