Počet záznamů: 1
Dependence of Thermal Plasma Flow Velocity on Arc Current Determined by Correlation Analysis of Optical Records
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SYSNO ASEP 0363825 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Dependence of Thermal Plasma Flow Velocity on Arc Current Determined by Correlation Analysis of Optical Records Tvůrce(i) Gruber, Jan (UT-L) RID, ORCID
Šonský, Jiří (UT-L) RID
Hlína, Jan (UT-L) RIDZdroj.dok. XIXth Symposium on Physics of Switching Arc. - Brno : Brno University of Technology, 2011 / Aubrecht V. ; Bartlová M. - ISBN 978-80-214-4293-1 Rozsah stran s. 201-204 Poč.str. 4 s. Akce Symposium on Physics of Switching Arc /19./ Datum konání 05.09.2011-09.09.2011 Místo konání Nové Město na Moravě Země CZ - Česká republika Typ akce EUR Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova thermal plasma ; plasma jets ; correlation Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech CEZ AV0Z20570509 - UE-C, UT-L (2005-2011) EID SCOPUS 84901763548 Anotace Optical radiation of thermal plasma jet was recorded in two parallel cross-sections perpendicular to the jet axis and separated by 3.5 mm. Sufficient sampling rate was a prerequisite to obtain detectable shift between the time-series recorded in closer and farther cross-sections. We have determined time lags between the recorded signals both in the core and boundary regions by correlation analysis and subsequently determined associated velocities of plasma flow. Arc current was gradually increased in respective measurements, gas flow was fixed. Determined flow velocities are in the range 140 m/s - 280 m/s in the jet core and 110 m/s – 220 m/s in the boundary region. This is in agreement with the results obtained for similar plasma torches by other methods in the past. Velocity increases with arc current almost linearly and this dependence and velocity profile in the plasma jet cross-section are presented in this paper. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2012
Počet záznamů: 1