Original title: Preventing microbubble conjunctions by gas flow excited by a fluidic oscillator
Authors: Tesař, Václav
Document type: Papers
Conference/Event: Topical Problems of Fluid Mechanics 2014, Praha (CZ), 2014-02-19 / 2014-02-21
Year: 2014
Language: eng
Abstract: Recently demonstrated was efficient generation of desirable small-size microbubbles in liquids by applying oscillation to the air flow supplied into the aerator - preferably by means of a simple and inexpensive fluidic oscillator. It remained unexplained what the oscillation actually does with the bubbles. In this paper was established that microbubbles are produced in a process consisting of several discrete steps, in each growing in size. Oscillation of the gas flow can eliminate this growth and keep the resultant bubbles small. Two alternative mechanisms were identified than can suppress the growth.
Keywords: flow reversal; fluidic oscillator; microbubbles
Project no.: GA13-23046S (CEP)
Funding provider: GA ČR
Host item entry: Topical Problems of Fluid Mechanics 2014, ISBN 978-80-87012-51-2

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/11104/0233239

Permalink: http://www.nusl.cz/ntk/nusl-172818


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