Investigation of two-phase flow in an effervescent atomizer

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Proceedings titleAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
ConferenceASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting, FEDSM 2014, Collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels, 3 August 2014 through 7 August 2014
SubjectAtomization; Combustors; Fluid structure interaction; Gas turbines; Internal combustion engines; Machinery; Mixing; Atomization process; Effervescent atomization; Effervescent atomizers; Gas turbine combustor; Liquid atomization; Mixing chamber; Separation bubble; Trailing edges; Two phase flow
AbstractAerated-liquid atomization, also called "effervescent atomization", is a technique that has a wide range of applications such as gas turbine combustors, internal combustion engines, furnaces and burners, and pharmaceutical sprays. We report on an experimental study conducted to investigate the two-phase flow in an Effervescent atomizer. A novel aerator tube base was implemented and tested. It is observed that the novel configuration suppresses the separation bubble at the trailing edge and results in more uniform and smaller bubbles compared to the standard flat base aerator. It has been found that the more uniform and smaller bubbles are generated as the mixing chamber length is reduced. It is concluded that by using a conical base aerator and by reducing the mixing chamber length, the spray steadiness and the atomization process can be significantly improved.
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AffiliationNational Research Council Canada (NRC-CNRC); Aerospace
Peer reviewedYes
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This is a non-NRC publication

"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.

NPARC number21275855
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Record identifierda6ba3d2-396d-477c-909c-81321f9d6f9a
Record created2015-07-14
Record modified2016-05-09
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