Investigation of two-phase flow in an effervescent atomizer

From National Research Council Canada

DOI	Resolve DOI: https://doi.org/10.1115/FEDSM2014-21925
Author	Search for: Jobehdar, M.H.; Search for: Gadallah, A.H.; Search for: Siddiqui, K.; Search for: Chishty, W.A.¹
Affiliation	National Research Council of Canada. Aerospace
Format	Text, Article
Conference	ASME 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
Subject	Atomization; 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
Abstract	Aerated-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.
Publication date	2014
In	American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM 1B (2014).
Language	English
Peer reviewed	Yes
NRC publication	This is a non-NRC publication "Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.
NPARC number	21275855
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Record identifier	da6ba3d2-396d-477c-909c-81321f9d6f9a
Record created	2015-07-14
Record modified	2020-04-22

Date modified:: 2025-11-14