Please use this identifier to cite or link to this item: https://idr.l3.nitk.ac.in/jspui/handle/123456789/13540
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dc.contributor.authorShelar, V.M.
dc.contributor.authorHegde, G.M.
dc.contributor.authorUmesh, G.
dc.contributor.authorJagadeesh, G.
dc.contributor.authorReddy, K.P.J.
dc.date.accessioned2020-03-31T08:48:11Z-
dc.date.available2020-03-31T08:48:11Z-
dc.date.issued2013
dc.identifier.citationEPJ Applied Physics, 2013, Vol.62, 3, pp.-en_US
dc.identifier.uri10.1051/epjap/2013120500
dc.identifier.urihttp://idr.nitk.ac.in/jspui/handle/123456789/13540-
dc.description.abstractIn this paper, we present the molecular density distribution measurement in turbulent nitrogen jet (Re ? 3�103), using acetone as molecular tracer. The tracer was seeded in the nitrogen jet by purging through the liquid acetone at ambient temperature. Planar laser sheet of 266 nm wavelength from frequency quadrupled, Q-switched, Nd:YAG laser was used as an excitation source. Emitted fluorescence images of jet flow field were recorded on CMOS camera. The dependence of planar laser induced fluorescence (PLIF) intensity on acetone vapor density was used to convert PLIF image of nitrogen jet into the density image on pixel-by-pixel basis. Instantaneous quantitative density image of nitrogen jet, seeded with acetone, was obtained. The arrowhead-shaped coherent turbulent structures were observed in the present work. It was found that coherent structures were non-overlapping with separate boundaries. Breaking of coherent structures into turbulence was clearly observed above four times jet width. � EDP Sciences, 2013.en_US
dc.titleVisualization of coherent structures in turbulent subsonic jet using planar laser induced fluorescence of acetoneen_US
dc.typeArticleen_US
Appears in Collections:1. Journal Articles

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