Self-Excited Electrostatic Pendulum Showing Electrohydrodynamic-Force-Induced Oscillation

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dc.contributor.authorStephan, Karl D.
dc.contributor.authorHernandez Guerrero, Jose M.
dc.date.accessioned2020-04-21T19:01:49Z
dc.date.available2020-04-21T19:01:49Z
dc.date.issued2017-12
dc.description.abstractThe electrohydrodynamic (EHD) effect ("ion wind") associated with corona discharges in air has been extensively investigated and modeled. We present a simple experiment that shows how both the magnitude and direction of EHD forces can change in such a way as to impart energy continuously to an oscillating electrostatic pendulum. The amplitude of oscillations of an electrostatic pendulum subject to EHD forces can grow approximately exponentially over a period of minutes, and we describe a qualitative theory to account for this effect, along with implications of these experiments for theories of ball lightning.
dc.description.departmentEngineering
dc.formatText
dc.format.extent9 pages
dc.format.medium1 file (.pdf)
dc.identifier.citationStephan, K. D., & Hernandez Guerrero, J. M. (2017). Self-excited electrostatic pendulum showing electrohydrodynamic-force-induced oscillation. Journal of Applied Physics, 122(24), pp. 1-8.
dc.identifier.doihttps://doi.org/10.1063/1.5003010
dc.identifier.issn0021-8979
dc.identifier.urihttps://hdl.handle.net/10877/9663
dc.language.isoen
dc.publisherAmerican Institute of Physics Publishing
dc.rights.holder© 2017 The Author(s).
dc.sourceJournal of Applied Physics, 2017, Vol. 122, No. 24, Article 243302, pp. 1-8.
dc.subjectpendulums
dc.subjectelectrostatic apparatus and appliances
dc.subjectelectrohydrodynamics
dc.subjectoscillations
dc.subjectcorona discharge
dc.subjectball lightning
dc.subjectIngram School of Engineering
dc.titleSelf-Excited Electrostatic Pendulum Showing Electrohydrodynamic-Force-Induced Oscillation
dc.typeArticle

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