Characterization of a non-isothermal water spray by global rainbow thermometry

Vetrano, Maria Rosaria; Gauthier, Ségolène; Beeck, Jeroen van; Boulet, Pascal; Buchlin, Jean‐Marie

doi:10.1007/s00348-005-0042-4

Cited by 29 publications

(28 citation statements)

References 15 publications

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“…Few techniques can be used to characterize the local temperature of the liquid phase in a spray. The global rainbow thermometry (GRT) aims to smooth the sphericity effects usually found with the standard rainbow technique on single droplets (Vetrano et al 2006;Van Beeck et al 2003).…”

Section: Introductionmentioning

confidence: 99%

New insight into two-color LIF thermometry applied to temperature measurements of droplets

et al. 2010

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To cite this version:Alexandre Labergue, Valérie Deprédurand, Alain Delconte, Guillaume Castanet, Fabrice Lemoine. New insight into two-color LIF thermometry applied to temperature measurements of droplets. Experiments in Fluids, Springer Verlag (Germany), 2010, 49 (2), pp.547 -556. <10.1007/s00348-010-0828-x>. New insight into two-color LIF thermometry applied to temperature measurements of dropletsAbstract When laser-induced fluorescence of droplets is used for measurements such as droplet temperature, a new dependence of the droplet size on the spectral distribution of fluorescence has been highlighted. The two-color laserinduced fluorescence technique applied to droplet temperature measurement requires a single fluorescent tracer and two spectral bands of detection for which the temperature sensitivity is different. Generally, the ratio of the intensities measured on each of the spectral bands of detection is assumed to be only temperature dependent. However, droplet dependence on diameter is also likely to influence the intensities ratio. This study provides some illustrations of the phenomenon, first on sprays with different mean statistical diameters and secondly on single droplets, for two temperature-sensitive fluorescent tracers in their solvents: sulforhodamine B dissolved in water and pyrromethene 597-8C9 dissolved in n-decane.

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Section: Introductionmentioning

confidence: 99%

New insight into two-color LIF thermometry applied to temperature measurements of droplets

et al. 2010

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“…An interesting feature of the GRT relates to the smoothing of the perturbations induced by non-spherical droplets. In contrast, non-spherical droplets can lead to substantial errors with the standard rainbow technique dealing exclusively with single droplets (Vetrano et al 2006;Van Beek et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Study of the droplet size effect coupled with the laser light scattering in sprays for two-color LIF thermometry measurements

et al. 2011

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“…Experimental and numerical results for fluid dynamics and radiation attenuation by a water spray have been already presented in previous works [5][6][7][8]. Our study was based on a pioneer work by Dembélé et al [9,10] and was extended to a tri-dimensional configuration, taking into account the coupling between spray flow and the radiative transfer.…”

Section: Introductionmentioning

confidence: 92%

“…The Global Rainbow Thermometry (GRT) [5,[11][12][13] technique is a non-intrusive laser based technique that can provide the size and temperature probability distribution of an ensemble of droplets in a fixed probe volume. The experimental setup consists in an enlarged cylindrical laser beam of about 7 cm diameter that illuminates the droplets.…”

Section: Droplet Temperature and Size Measurements: Grtmentioning

confidence: 99%