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Liquid volume fraction and droplet sizing in atomizing sprays using polarization ratio with dual structured laser illumination planar imaging

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Titel: Liquid volume fraction and droplet sizing in atomizing sprays using polarization ratio with dual structured laser illumination planar imaging
Autoren: Garcia, Sebastien, Kornienko, Vassily, Stiti, Mehdi, Kristensson, Elias, Berrocal, Edouard
Weitere Verfasser: Lund University, Faculty of Engineering, LTH, Other operations, LTH, Lund Laser Centre, LLC, Lunds universitet, Lunds Tekniska Högskola, Annan verksamhet, LTH, Lunds lasercentrum, LLC, Originator, Lund University, Faculty of Engineering, LTH, LTH Profile areas, LTH Profile Area: Photon Science and Technology, Lunds universitet, Lunds Tekniska Högskola, LTH profilområden, LTH profilområde: Avancerade ljuskällor, Originator, Lund University, Faculty of Science, Department of Physics, Combustion Physics, Lunds universitet, Naturvetenskapliga fakulteten, Fysiska institutionen, Förbränningsfysik, Originator, Lund University, Faculty of Engineering, LTH, LTH Profile areas, LTH Profile Area: The Energy Transition, Lunds universitet, Lunds Tekniska Högskola, LTH profilområden, LTH profilområde: Energiomställningen, Originator, Lund University, Profile areas and other strong research environments, Lund University Profile areas, LU Profile Area: Light and Materials, Lunds universitet, Profilområden och andra starka forskningsmiljöer, Lunds universitets profilområden, LU profilområde: Ljus och material, Originator, Lund University, Faculty of Engineering, LTH, LTH Profile areas, LTH Profile Area: Engineering Health, Lunds universitet, Lunds Tekniska Högskola, LTH profilområden, LTH profilområde: Teknik för hälsa, Originator
Quelle: Optics Letters. 50(19):6233-6236
Schlagwörter: Natural Sciences, Physical Sciences, Atom and Molecular Physics and Optics, Naturvetenskap, Fysik, Atom- och molekylfysik och optik (Här ingår: Kemisk fysik, kvantoptik)
Beschreibung: It is essential that the design of atomizing sprays be tailored to the specific requirements of various industrial processes within, e.g., the agricultural or energy sector. However, the measurement of key atomizer parameters—central to the optimization of such systems—suffers from time-intensive techniques, complex calibration routines, and/or the need to include additives in the injected liquid. Here, we present an additive-less, two-dimensional optical technique for determining droplet sizes, number densities, and liquid volume fractions of optically dense atomizing sprays. This method is applied to characterize two distinct hollow-cone sprays injected at high pressure and flow rate. Our results reveal local inhomogeneities in various key atomizer parameters, demonstrating the potential for efficient, in situ characterization of atomizing spray systems.
Zugangs-URL: https://doi.org/10.1364/OL.563173
Datenbank: SwePub
Beschreibung
Abstract:It is essential that the design of atomizing sprays be tailored to the specific requirements of various industrial processes within, e.g., the agricultural or energy sector. However, the measurement of key atomizer parameters—central to the optimization of such systems—suffers from time-intensive techniques, complex calibration routines, and/or the need to include additives in the injected liquid. Here, we present an additive-less, two-dimensional optical technique for determining droplet sizes, number densities, and liquid volume fractions of optically dense atomizing sprays. This method is applied to characterize two distinct hollow-cone sprays injected at high pressure and flow rate. Our results reveal local inhomogeneities in various key atomizer parameters, demonstrating the potential for efficient, in situ characterization of atomizing spray systems.
ISSN:15394794
DOI:10.1364/OL.563173