Droplet evaporation on a solid surface exposed to forced convection : Experiments, simulation and dimensional analysis [Evaporation d’une goutte sur une surface solide exposée à la convection forcée : expérimentation, simulation et analyse dimensionnelle] Article - 2017

Christophe Doursat, Logan Lecoq, Onrawee Laguerre, D. Flick

Christophe Doursat, Logan Lecoq, Onrawee Laguerre, D. Flick, « Droplet evaporation on a solid surface exposed to forced convection : Experiments, simulation and dimensional analysis [Evaporation d’une goutte sur une surface solide exposée à la convection forcée : expérimentation, simulation et analyse dimensionnelle]  », International Journal of Heat and Mass Transfer, 2017, pp. 1234-1245. ISSN 0017-9310

Abstract

Experiments were carried out in order to study the evolution of the mass and wetted surface during evap-oration of pure water droplets on stainless steel and PVC plates exposed to forced air convection. Thenumerical model developed takes into account both coupled heat and mass transfer phenomena and the change in droplet geometry during both pinning and receding periods. The comparison between experimental results and simulation shows good agreement. The model is able to reproduce the influence of the plate properties and that of relative humidity. Dimensional analysis was performed and dimensionless diagrams were developed to predict the drying time for water droplets on stainless steel under a broad range of operating conditions.

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