Experimental study of a circular jet under the effect of secondary jets

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dc.contributorSharif, Muhammad Ali Rob
dc.contributorBaker, John
dc.contributor.advisorOlcmen, Semih M.
dc.contributor.authorLaldinpuii Kurup, Arathi
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.date.accessioned2017-03-01T16:51:42Z
dc.date.available2017-03-01T16:51:42Z
dc.date.issued2013
dc.descriptionElectronic Thesis or Dissertationen_US
dc.description.abstractThe present study investigates the interaction between two jets: a primary round jet and secondary jets formed by a manipulated co-annular jet. Secondary jets were formed by a combination of a co-annular jet issuing from a nozzle with convex surfaces and fluid injection into the co-annular jet perpendicular to the primary jet axis. Experiments reported here were carried out using a two-component Laser-Doppler-Velocimetry system to determine the effects of the secondary jet on the primary jet. Mean velocity and Reynolds stress measurements were made along and across the primary jet centerline with and without the presence of the secondary jet. It was observed that fluid injection into the spacing between the inner jet pipe and the outer jet surface highly affects the characteristics of the mixing region. Fluid injection perpendicular to the co-annular jet transforms the co-annular jet into two separate jets positioned at 180 degrees apart from each other. As compared to the primary jet only case, the interaction of the secondary jets with the primary jet results in a planar primary jet showing faster centerline velocity reduction. The spreading of the jet was also seen to be twice the values observed with the primary jet alone at each x/d location. The Reynolds number for the primary jet was about 16000.en_US
dc.format.extent143 p.
dc.format.mediumelectronic
dc.format.mimetypeapplication/pdf
dc.identifier.otheru0015_0000001_0001384
dc.identifier.otherLaldinpuiiKurup_alatus_0004M_11624
dc.identifier.urihttps://ir.ua.edu/handle/123456789/1850
dc.languageEnglish
dc.language.isoen_US
dc.publisherUniversity of Alabama Libraries
dc.relation.hasversionborn digital
dc.relation.ispartofThe University of Alabama Electronic Theses and Dissertations
dc.relation.ispartofThe University of Alabama Libraries Digital Collections
dc.rightsAll rights reserved by the author unless otherwise indicated.en_US
dc.subjectAerospace engineering
dc.titleExperimental study of a circular jet under the effect of secondary jetsen_US
dc.typethesis
dc.typetext
etdms.degree.departmentUniversity of Alabama. Department of Aerospace Engineering and Mechanics
etdms.degree.disciplineAerospace Engineering
etdms.degree.grantorThe University of Alabama
etdms.degree.levelmaster's
etdms.degree.nameM.S.
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