Abstract
An extension and a new application of the laser-induced fluorescence (LIF) is developed for supercooled droplet characterization: temperature measurements and phase droplet discrimination (liquid, solid or partially solid). In a first step, fluorescent dyes have to be selected to obtain a solution having a high temperature sensitivity. For that, fluorescent spectra at different temperatures of supercooled water within a cooled cell are analyzed and a couple of two fluorescent dyes have been identified. The water (with both dyes) was calibrated in temperature using a suspended droplet up to a minimum temperature of − 17 °C and a sensitivity of 2.56%/°C was obtained. A thorough study of the fluorescence spectrum allows also using LIF to determine the phase of the droplets. Furthermore, with the help of magnetic resonance imaging, it also possible to estimate the ice fraction in the case of supercooled water contained in a cell. Finally, the LIF technique is tested on supercooled droplets flying in a cold air environment for several injection conditions: droplets’ diameters up to 400 µm and a minimum temperature of − 45 °C. All detected droplets are classified according to their states and, for liquid droplets only, the temperature is obtained. Main results show a decrease of the supercooled droplets when the ambient air temperature decreases. Similarly, the number of liquid droplets increases with the ambient air temperature.
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References
Brunel M et al (2017) Instrumentation for ice crystal characterization in laboratory using interferometric out-of-focus imaging. Rev Sci Instrum 88(8):83–108. http://aip.scitation.org/doi/10.1063/1.4997959. Accessed 2 May 2018
Castanet G, Lebouche M, Lemoine F (2005) Heat and mass transfer of combusting monodisperse droplets in a linear stream. Int J Heat Mass Transf 48:3261–3275
Castanet G, Labergue A, Lemoine F (2011) Internal temperature distributions of interacting and vaporizing droplets. Int J Therm Sci 50:1181–1190 (Available at: 2.001)
Castanet G et al (2016) Evaporation of closely-spaced interacting droplets arranged in a single row. Int J Therm Sci 93:788–802. https://doi.org/10.1016/j.ijheatmasstransfer.2015.09.064
Cebeci T, Kafyeke F (2003) Aircraft icing. Annu Rev Fluid Mech 35(1):11–23
Chaze W et al (2016) The saturation of the fluorescence and its consequences for laser-induced fluorescence thermometry in liquid flows. Exp Fluids 57(4):58
Chaze W et al (2017) Spatially and temporally resolved measurements of the temperature inside droplets impinging on a hot solid surface. Exp Fluids 58(8):96
Depredurand V, Castanet G, Lemoine F (2010) Heat and mass transfer in evaporating droplets in interaction: influence of the fuel. Int J Heat Mass Transf 53:3495–3502
Đuričković I et al (2011) Water–ice phase transition probed by Raman spectroscopy. J Raman Spectrosc 42(6):1408–1412
Hindmarsh JP, Russell AB, Chen XD (2005a) Measuring dendritic growth in undercooled sucrose solution droplets. J Cryst Growth 285(1–2):236–248. http://linkinghub.elsevier.com/retrieve/pii/S0022024805009462. Accessed 2 May 2018
Hindmarsh JP, Wilson DI, Johns ML (2005b) Using magnetic resonance to validate predictions of the solid fraction formed during recalescence of freezing drops. Int J Heat Mass Transf 48(5):1017–1021
Jacquot J et al (2015) Size determination of mixed liquid and frozen water droplets using interferometric out-of-focus imaging. J Quant Spectrosc Radiat Transf 178:108–116
Jacquot J et al (2016) Simultaneous interferometric in-focus and out-of-focus imaging of ice crystals. Opt Commun 372:185–195
Labergue A et al (2017) Combined three-color LIF-PDA measurements and infrared thermography applied to the study of the spray impingement on a heated surface above the Leidenfrost regime. Int J Heat Mass Transf 104:1008–1021
Perrin L, Castanet G, Lemoine F (2015) Characterization of the evaporation of interacting droplets using combined optical techniques. Exp Fluids 56(2):29
Shibkov AA et al (2003) Morphology diagram of nonequilibrium patterns of ice crystals growing in supercooled water. Phys A Stat Mech Appl 319:65–79
Wood SE, Baker MB, Swanson BD (2002) Instrument for studies of homogeneous and heterogeneous ice nucleation in free-falling supercooled water droplets. Rev Sci Instrum 73(11):3988–3996
Xue X, He Z-Z, Liu J (2013) Detection of water–ice phase transition based on Raman spectrum. J Raman Spectrosc 44(7):1045–1048
Acknowledgements
The authors thank the French National Agency for its financial support through the project ANR ASTRID NUAGE (N°. ANR-15-ASTR-0003-01).
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Stiti, M., Labergue, A., Lemoine, F. et al. Temperature measurement and state determination of supercooled droplets using laser-induced fluorescence. Exp Fluids 60, 69 (2019). https://doi.org/10.1007/s00348-018-2672-3
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DOI: https://doi.org/10.1007/s00348-018-2672-3