Oscillatory electrohydrodynamic gas flows

F. C. Lai, P. J. McKinney, J. H. Davidson

Research output: Contribution to journalArticlepeer-review

56 Scopus citations

Abstract

Prior numerical solutions of electrohydrodynamic flows in a positive-corona, wire-plate electrostatic precipitator are extended to reveal steady-periodic electrohydrodynamic flows. Previously, only steady solutions were reported. The present study includes results for flows with Reynolds numbers from 0 to 4800 and with dimen-sionless electric number ranging from 0.06 to ∞. Results indicate that two regimes of low frequency oscillatory flow occur. The first regime is characterized by a single recirculating vortex that oscillates in strength between one and five Hertz. The second regime is characterized by two counter-rotating vortices that oscillate in strength at a frequency near one Hertz.

Original languageEnglish (US)
Pages (from-to)491-497
Number of pages7
JournalJournal of Fluids Engineering, Transactions of the ASME
Volume117
Issue number3
DOIs
StatePublished - Sep 1995

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