Numerical modeling of liquid jets in crossflow with applications to supersonic combustion ramjets

dc.contributor.advisor Alric Rothmayer
dc.contributor.author Hagen, Wyatt
dc.contributor.department Aerospace Engineering
dc.date 2019-01-15T09:10:50.000
dc.date.accessioned 2020-06-30T03:13:07Z
dc.date.available 2020-06-30T03:13:07Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 2017
dc.date.embargo 2018-11-22
dc.date.issued 2017-01-01
dc.description.abstract <p>Liquid jets in crossflow are used in a variety of fuel injection systems. Of particular interest in this work is the injection of liquid fuel into supersonic crossflow at scramjet startup conditions. Due to the short residence times of fuel in the combustor, it is imperative to efficiently and rapidly atomize and mix the fuel. Experiments often have limited ability to observe all of the wide range of scales and complicated liquid structures present in these conditions. Numerical simulations can provide additional insights into these complex flows. In this work, a numerical approach for the solution of compressible multi-component flows with capillary effects is presented along with additions to enable the solution of large computational problems. The approach is then validated against a non-turbulent round jet in subsonic crossflow. Comparisons to jet trajectory, column breakup location, and instability wavelengths are completed. A liquid jet in supersonic crossflow is simulated and the effects of a turbulence in the jet inflow are investigated. The jet trajectory is compared against experimental results. Although differences between the experimental results and numerical simulations are observed, the results suggest jet inflow turbulence can impact the atomization process in supersonic crossflow conditions and quantification of inflow conditions is important.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/etd/16718/
dc.identifier.articleid 7725
dc.identifier.contextkey 13578465
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath etd/16718
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/30901
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/etd/16718/Hagen_iastate_0097M_17023.pdf|||Fri Jan 14 21:04:59 UTC 2022
dc.subject.disciplines Aerospace Engineering
dc.subject.keywords Atomization
dc.subject.keywords Computational fluid dynamics
dc.subject.keywords Liquid jet
dc.subject.keywords Scramjet
dc.title Numerical modeling of liquid jets in crossflow with applications to supersonic combustion ramjets
dc.type article
dc.type.genre thesis
dspace.entity.type Publication
relation.isOrgUnitOfPublication 047b23ca-7bd7-4194-b084-c4181d33d95d
thesis.degree.discipline Aerospace Engineering
thesis.degree.level thesis
thesis.degree.name Master of Science
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