Investigation of Anode Attachment Area in Water/Argon Stabilized Plasma Arc

0454113 - ÚFP 2016 RIV CZ eng C - Conference Paper (international conference)
Ondáč, Peter - Mašláni, Alan - Hrabovský, Milan
Investigation of Anode Attachment Area in Water/Argon Stabilized Plasma Arc.
WDS 2015 — Proceedings of Contributed Papers — Physics. Prague: MATFYZPRESS, 2015 - (Šafránková, J.; Pavlů, J.), s. 245-251. WDS. ISBN 978-80-7378-311-2.
[WDS - 2015 - 24th Annual Conference of Doctoral Students/24./. Prague (CZ), 02.06.2015-04.06.2015]
R&D Projects: GA ČR(CZ) GA15-19444S
Institutional support: RVO:61389021
Keywords : Arc-anode * plasma arc
Subject RIV: BL - Plasma and Gas Discharge Physics
http://www.mff.cuni.cz/veda/konference/wds/proc/proc-contents.php?year=2015

Arc-anode attachment in a DC plasma arc stabilized by water vortex and argon, influences power distribution in the plasma, lifetime of the anode and also flow structure of the plasma jet. A movement of the attachment and the surrounding plasma has been directly observed by using a high-speed camera (max. 1,080,000 fps). The observations were compared with cathode–anode voltage measurements (sample rate 80 MHz). More than one attachment was observed in one frame with exposure time 0.25 μs or 0.29 μs. We have directly measured average velocities of the attachments and hydrodynamic waves above them, as well as the characteristic dwell times and dwell frequencies of the attachments
Permanent Link: http://hdl.handle.net/11104/0255122