Experimental investigations of rise behavior of monodispersed / polydispersed bubbly flows in quiescent liquids / Swapna S. Rabha in Industrial & engineering chemistry research, Vol. 49 N° 21 (Novembre 2010)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 49 N° 21 (Novembre 2010) . - pp. 10615-10626 Titre : Experimental investigations of rise behavior of monodispersed / polydispersed bubbly flows in quiescent liquids Type de document : texte imprimé Auteurs : Swapna S. Rabha, Auteur ; Vivek V. Buwa, Auteur Année de publication : 2011 Article en page(s) : pp. 10615-10626 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Bubble flow Résumé : The predictive capabilities of continuum CFD models to simulate large-scale dispersed gas—liquid flows depend on the closures used to estimate the interphase coupling forces. The present manuscript shows that different corrections that are applied to correct the drag force for multiple bubble systems lead to different predictions as the gas volume fraction is increased. In the present work, experimental investigations of monodispersed and polydispersed bubbles of different diameters (1.2 ≤ dB ≤ 7.5 mm) rising in quiescent water (0.19 ≤ Eo ≤ 8.72; log Mo = -10.5) at different gas volume fractions (0.01 0.1, the drag coefficient were found to be independent of αG. Further, the rise behavior of poly dispersed bubbles was also investigated. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23447954 [article] Experimental investigations of rise behavior of monodispersed / polydispersed bubbly flows in quiescent liquids [texte imprimé] / Swapna S. Rabha, Auteur ; Vivek V. Buwa, Auteur . - 2011 . - pp. 10615-10626. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 21 (Novembre 2010) . - pp. 10615-10626 Mots-clés : Bubble flow Résumé : The predictive capabilities of continuum CFD models to simulate large-scale dispersed gas—liquid flows depend on the closures used to estimate the interphase coupling forces. The present manuscript shows that different corrections that are applied to correct the drag force for multiple bubble systems lead to different predictions as the gas volume fraction is increased. In the present work, experimental investigations of monodispersed and polydispersed bubbles of different diameters (1.2 ≤ dB ≤ 7.5 mm) rising in quiescent water (0.19 ≤ Eo ≤ 8.72; log Mo = -10.5) at different gas volume fractions (0.01 0.1, the drag coefficient were found to be independent of αG. Further, the rise behavior of poly dispersed bubbles was also investigated. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23447954

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