Original title: Fluidic low-frequency oscillator consisting of load-switched diverter and a pair of vortex chambers
Authors: Tesař, Václav ; Peszyński, K. ; Smyk, E.
Document type: Papers
Conference/Event: Experimental Fluid Mechanics 2015 /10./, Praha (CZ), 2015-11-17 / 2015-11-20
Year: 2015
Language: eng
Abstract: Paper discusses a new configuration of fluidic oscillators, a subject of recent Patent application. There is some similarity with the standard Warren oscillator with its bistable jet-deflection diverter and two feedbacks – which is not suitable for situations demanding very low oscillation frequency. For these conditions the new design replaces jet-deflection switching in the diverter by load-switching effects, with the gradually increased loading by spin-up of fluid in the vortex chambers. The spin-up time also provides the needed time delays. Behaviour is characterised by the oscillation frequency increasing with increasing fluid flow rate – for which was derived a surprisingly simple theoretical solution.
Keywords: fluidic oscillator; load-switched diverter; vortex chamber
Project no.: GA13-23046S (CEP)
Funding provider: GA ČR
Host item entry: Experimental Fluid Mechanics 2015

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0254900

Permalink: http://www.nusl.cz/ntk/nusl-201377


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers