A turbulence-based model for the primary breakup of pressure atomized liquid jets

dc.contributor.advisor Shankar Subramaniam
dc.contributor.author Schmitz, Christopher
dc.contributor.department Mechanical Engineering
dc.date 2018-08-11T22:24:10.000
dc.date.accessioned 2020-06-30T02:27:27Z
dc.date.available 2020-06-30T02:27:27Z
dc.date.copyright Sat Jan 01 00:00:00 UTC 2011
dc.date.embargo 2013-06-05
dc.date.issued 2011-01-01
dc.description.abstract <p>The primary objective of this study was to investigate and validate a predictive, turbulence based primary breakup model. The ESE model is based on a modeled evolution of the turbulent energy spectrum, and is sufficiently general that it may be applied to a broad range of pressure-atomized spray processes, such as those found in agricultural irrigation, industrial coating, automotive fuel injection, and others. In this study, the governing equations are derived and applied to diesel sprays to address a lack of predictive primary breakup models in literature. Tests are performed to demonstrate that the ESE model is numerically converged and has well-behaved model constants. Drop-size distributions are generated for the dense liquid region and compared with experimental and DNS results obtained from literature. Finally, it is proposed that the ESE model be coupled to an aerodynamically-based secondary breakup model to improve predictive capability under real 'diesel-like' conditions.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/etd/10296/
dc.identifier.articleid 1211
dc.identifier.contextkey 2736308
dc.identifier.doi https://doi.org/10.31274/etd-180810-1654
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath etd/10296
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/24513
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/etd/10296/Schmitz_iastate_0097M_12281.pdf|||Fri Jan 14 18:17:43 UTC 2022
dc.subject.disciplines Mechanical Engineering
dc.subject.keywords atomization
dc.subject.keywords drop-size
dc.subject.keywords energy spectrum
dc.subject.keywords ESE
dc.subject.keywords primary breakup
dc.subject.keywords turbulence
dc.title A turbulence-based model for the primary breakup of pressure atomized liquid jets
dc.type article
dc.type.genre thesis
dspace.entity.type Publication
relation.isOrgUnitOfPublication 6d38ab0f-8cc2-4ad3-90b1-67a60c5a6f59
thesis.degree.level thesis
thesis.degree.name Master of Science
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