Scaling of natural convection of an inclined flat plate / Suvash C. Saha in Journal of heat transfer, Vol. 133 N° 4 (Avril 2011)  

Public ISBD [article]  inJournal of heat transfer > Vol. 133 N° 4 (Avril 2011) . - pp. [041503/1-9] Titre : Scaling of natural convection of an inclined flat plate : sudden cooling condition Type de document : texte imprimé Auteurs : Suvash C. Saha, Auteur ; John C. Patterson, Auteur ; Chengwang Lei, Auteur Année de publication : 2011 Article en page(s) : pp. [041503/1-9] Note générale : Physique Langues : Anglais (eng) Mots-clés : Natural convection Sudden cooling Boundary layer Unsteady flow Instability Index. décimale : 536 Chaleur. Thermodynamique Résumé : The natural convection boundary layer adjacent to an inclined plate subject to sudden cooling boundary condition has been studied. It is found that the cold boundary layer adjacent to the plate is potentially unstable to Rayleigh–Bénard instability if the Rayleigh number exceeds a certain critical value. A scaling relation for the onset of instability of the boundary layer is achieved. The scaling relations have been developed by equating important terms of the governing equations based on the development of the boundary layer with time. The flow adjacent to the plate can be classified broadly into a conductive, a stable convective, or an unstable convective regime determined by the Rayleigh number. Proper scales have been established to quantify the flow properties in each of these flow regimes. An appropriate identification of the time when the instability may set in is discussed. A numerical verification of the time for the onset of instability is also presented in this study. Different flow regimes based on the stability of the boundary layer have been discussed with numerical results. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&smode=strresults& [...] [article] Scaling of natural convection of an inclined flat plate : sudden cooling condition [texte imprimé] / Suvash C. Saha, Auteur ; John C. Patterson, Auteur ; Chengwang Lei, Auteur . - 2011 . - pp. [041503/1-9]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 133 N° 4 (Avril 2011) . - pp. [041503/1-9] Mots-clés : Natural convection Sudden cooling Boundary layer Unsteady flow Instability Index. décimale : 536 Chaleur. Thermodynamique Résumé : The natural convection boundary layer adjacent to an inclined plate subject to sudden cooling boundary condition has been studied. It is found that the cold boundary layer adjacent to the plate is potentially unstable to Rayleigh–Bénard instability if the Rayleigh number exceeds a certain critical value. A scaling relation for the onset of instability of the boundary layer is achieved. The scaling relations have been developed by equating important terms of the governing equations based on the development of the boundary layer with time. The flow adjacent to the plate can be classified broadly into a conductive, a stable convective, or an unstable convective regime determined by the Rayleigh number. Proper scales have been established to quantify the flow properties in each of these flow regimes. An appropriate identification of the time when the instability may set in is discussed. A numerical verification of the time for the onset of instability is also presented in this study. Different flow regimes based on the stability of the boundary layer have been discussed with numerical results. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&smode=strresults& [...]

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