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Ignition of nanosecond discharge in liquids: Cavitation bubble, bushy and filamentary discharge

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Abstract

Three scenarios can be observed in polar dielectrics (deionized water and ethanol) under a nanosecond positive HV pulse depending on HV pulse amplitude. Two discharge modes (‘bush-like’ and ‘tree-like’) and cavitation mode are characterized by different morphology, propagation velocity and initial pressure. Dynamics of cavitation mode is analysed in terms of Rayleigh model. Initial cavity size in deionized water, ethanol and n-pentane agrees with the predictions of numerical simulations performed by other authors.

Original languageEnglish
Title of host publication52nd Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Electronic)9781624102561
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes
Event52nd Aerospace Sciences Meeting 2014 - National Harbor, United States
Duration: 13 Jan 201417 Jan 2014

Publication series

Name52nd Aerospace Sciences Meeting

Conference

Conference52nd Aerospace Sciences Meeting 2014
Country/TerritoryUnited States
CityNational Harbor
Period13/01/1417/01/14

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