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dc.contributor.authorInada, Yuki
dc.contributor.authorNagai, Hiroyuki
dc.contributor.authorKumada, Akiko
dc.contributor.authorHidaka, Kunihiko
dc.contributor.authorDemura, Yuki
dc.contributor.authorTabata, Yu
dc.contributor.authorTanaka, Yasunori
dc.contributor.authorNakano, Tomoyuki
dc.date.accessioned2019-07-24T12:44:59Z
dc.date.available2019-07-24T12:44:59Z
dc.date.issued2019-06-03
dc.identifier.isbn978-2-9602415-0-1
dc.identifier.issn2032-9644
dc.identifier.urihttps://cired-repository.org/handle/20.500.12455/603
dc.identifier.urihttp://dx.doi.org/10.34890/826
dc.description.abstractMulti-directional turbulent structures were visualized for gas-blasted arc discharges under current-zero phases generated in a 50-mm-long interelectrode gap confined by a model gas flow nozzle, in order to conduct a systematic comparison of turbulent gas dynamics amongthreekinds of different arc-quenching gas media: air,CO2and SF6.Theturbulenceof all gases demonstrated hierarchical structures, where small turbulence in sizes of~10mm were distributed circularly and formed millimeter-scale large circles. The small turbulence in dimensions of 33-43mm was even stronger for SF6, compared with air and CO2. Further, the electron density imaging was complementally conductedin order to investigate the correlation between the turbulent dynamics and the electron density decaying process.The electron density for SF6 demonstrated the fastest decrease, which was followed by CO2 and air. A combination of the turbulent and electron density behavior suggested that the strongest small turbulence of SF6 could cause the cold gas mixing into the arc, which resulted in the rapid arc cooling and the fastest electron density reduction.
dc.language.isoen
dc.publisherAIM
dc.relation.ispartofseriesCIRED Conference Proceedings
dc.titleComparative Study on Turbulent Flow Structure under Air, CO2 and SF6 Gas Blasting Visualized by Band-Pass Filtering Schlieren System
dc.typeConference Proceedings
dc.description.conferencelocationMadrid, Spain
dc.relation.ispartProc. of the 25th International Conference on Electricity Distribution (CIRED 2019)
dc.contributor.detailedauthorInada, Yuki, Saitama University, Japan
dc.contributor.detailedauthorNagai, Hiroyuki, The University of Tokyo, Japan
dc.contributor.detailedauthorKumada, Akiko, The University of Tokyo, Japan
dc.contributor.detailedauthorHidaka, Kunihiko, The University of Tokyo, Japan
dc.contributor.detailedauthorDemura, Yuki, Kanazawa University, Japan
dc.contributor.detailedauthorTabata, Yu, Kanazawa University, Japan
dc.contributor.detailedauthorTanaka, Yasunori, Kanazawa University, Japan
dc.contributor.detailedauthorNakano, Tomoyuki, Central Research Institute of Electric Power Industry, Japan
dc.date.conferencedate3-6 June 2019
dc.description.peerreviewedYes
dc.title.number1845
dc.description.openaccessYes
dc.contributor.countryJapan
dc.contributor.countryJapan
dc.contributor.countryJapan
dc.contributor.countryJapan
dc.contributor.countryJapan
dc.contributor.countryJapan
dc.contributor.countryJapan
dc.contributor.countryJapan
dc.description.conferencenameCIRED 2019
dc.contributor.affiliationSaitama University
dc.contributor.affiliationThe University of Tokyo
dc.contributor.affiliationThe University of Tokyo
dc.contributor.affiliationThe University of Tokyo
dc.contributor.affiliationKanazawa University
dc.contributor.affiliationKanazawa University
dc.contributor.affiliationKanazawa University
dc.contributor.affiliationCentral Research Institute of Electric Power Industry
dc.description.sessionNetwork components
dc.description.sessionidSession 1


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