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Freezing mechanism of supercooled water droplet impinging on metal surfaces / Guomin Yang in International journal of refrigeration, Vol. 34 N° 8 (Décembre 2011) 

Public ISBD [article]  in International journal of refrigeration > Vol. 34 N° 8 (Décembre 2011) . - pp. 2007–2017 Titre : Freezing mechanism of supercooled water droplet impinging on metal surfaces Titre original : Mécanisme de congélation des gouttelettes d'eau surrefroidies impactant sur des surfaces métalliques Type de document : texte imprimé Auteurs : Guomin Yang, Auteur ; Kaihua Guo, Auteur ; Ning Li, Auteur Année de publication : 2012 Article en page(s) : pp. 2007–2017 Note générale : Génie mécanique Langues : Anglais (eng) Mots-clés : Supercooling  Water  Droplet  Freezing  Ice  Morphology Résumé : Ice accretion on power lines is a random natural phenomenon and may seriously harm to the safety of power network. However, the mechanism of the freezing process of supercooled water droplet impacting on wires is still not fully understood. In this study, an experimental investigation on the freezing mechanism of the supercooled water droplet impinging on cold metal surfaces was performed. The morphological characters and the dynamics of a single supercooled droplet collide on the cylindrical metal surfaces had been revealed with high-speed photographing. The experimental data for the surfaces of stainless steel, copper and aluminum, on which the supercooled droplets impinging with speeds of 2.3 m s−1 and 4.3 m s−1 had been plotted. The phenomena of instantaneous and non-instantaneous freezing of the supercooled impinging droplet were identified and the conditional boundaries for these two kinds of freezing were found statistically. ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711001629 [article] Freezing mechanism of supercooled water droplet impinging on metal surfaces = Mécanisme de congélation des gouttelettes d'eau surrefroidies impactant sur des surfaces métalliques [texte imprimé] / Guomin Yang, Auteur ; Kaihua Guo, Auteur ; Ning Li, Auteur . - 2012 . - pp. 2007–2017. Génie mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 34 N° 8 (Décembre 2011) . - pp. 2007–2017 Mots-clés : Supercooling  Water  Droplet  Freezing  Ice  Morphology Résumé : Ice accretion on power lines is a random natural phenomenon and may seriously harm to the safety of power network. However, the mechanism of the freezing process of supercooled water droplet impacting on wires is still not fully understood. In this study, an experimental investigation on the freezing mechanism of the supercooled water droplet impinging on cold metal surfaces was performed. The morphological characters and the dynamics of a single supercooled droplet collide on the cylindrical metal surfaces had been revealed with high-speed photographing. The experimental data for the surfaces of stainless steel, copper and aluminum, on which the supercooled droplets impinging with speeds of 2.3 m s−1 and 4.3 m s−1 had been plotted. The phenomena of instantaneous and non-instantaneous freezing of the supercooled impinging droplet were identified and the conditional boundaries for these two kinds of freezing were found statistically. ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711001629