Numerical modelling of supercritical flow in rectangular chute bends / Mahnaz Ghaeini-Hessaroeyeh in Journal of hydraulic research, Vol. 49 N° 5 (Septembre/Octobre 2011)  

Public ISBD [article]  inJournal of hydraulic research > Vol. 49 N° 5 (Septembre/Octobre 2011) . - pp. 685-688 Titre : Numerical modelling of supercritical flow in rectangular chute bends Type de document : texte imprimé Auteurs : Mahnaz Ghaeini-Hessaroeyeh, Auteur ; Ahmad Tahershamsi, Auteur ; Masoud Montazeri Namin, Auteur Année de publication : 2011 Article en page(s) : pp. 685-688 Note générale : Hydraulique Langues : Anglais (eng) Mots-clés : Bend Finite volume method Shallow-water equations Supercritical flow TVD–WAF Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : A two-dimensional numerical model predicting supercritical flow in open channels has been developed using the finite volume method. The shallow-water equations are solved by the total variation diminishing weighted average flux method. Then the model is applied to a wide range of supercritical flow tests in rectangular chute bends and the results are compared with available experimental data. The results indicate that the model predicts the flow profile well for the channel bend with a width to channel curvature ratio of 0.04 and the present model has limitations for the other tests which have a higher ratio. DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.589130 [article] Numerical modelling of supercritical flow in rectangular chute bends [texte imprimé] / Mahnaz Ghaeini-Hessaroeyeh, Auteur ; Ahmad Tahershamsi, Auteur ; Masoud Montazeri Namin, Auteur . - 2011 . - pp. 685-688. Hydraulique Langues : Anglais (eng) in Journal of hydraulic research > Vol. 49 N° 5 (Septembre/Octobre 2011) . - pp. 685-688 Mots-clés : Bend Finite volume method Shallow-water equations Supercritical flow TVD–WAF Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : A two-dimensional numerical model predicting supercritical flow in open channels has been developed using the finite volume method. The shallow-water equations are solved by the total variation diminishing weighted average flux method. Then the model is applied to a wide range of supercritical flow tests in rectangular chute bends and the results are compared with available experimental data. The results indicate that the model predicts the flow profile well for the channel bend with a width to channel curvature ratio of 0.04 and the present model has limitations for the other tests which have a higher ratio. DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.589130

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