Influence of design parameters on throttling efficiency of cylindrical and conical vortex valves / Patryk Wojtowicz in Journal of hydraulic research, Vol. 47 N° 5 (2009)  

Public ISBD [article]  inJournal of hydraulic research > Vol. 47 N° 5 (2009) . - pp. 559-565 Titre : Influence of design parameters on throttling efficiency of cylindrical and conical vortex valves Titre original : Influence des paramètres de conception sur l'efficacité de l'étranglement des vannes cylindrique et coniques de vortex Type de document : texte imprimé Auteurs : Patryk Wojtowicz, Auteur ; Andrzej Kotowski, Auteur Article en page(s) : pp. 559-565 Note générale : Hydraulique Résumé en Français Langues : Anglais (eng) Mots-clés : Hydraulics Hydrodynamic regulator Liquid flow Modeling Throttling 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 : Selected hydraulic test results of cylindrical and conical vortex valves in a pilot-plant scale are presented to discuss the effects of the geometric parameters and the spatial orientation of a vortex chamber. Tests performed include the effects of the inlet and outlet diameters, swirl radius, chamber height and diameter on the hydraulic characteristics. A novel, universal variable K, describing the geometry of vortex valves and grouping their geometrical parameters, is introduced. This constant K increases the quantitative accuracy of the relationship between the discharge coefficient and the geometrical parameters. A test methodology for hydrodynamic vortex regulators has been developed and was applied to environmental engineering, based on dimensional analysis. This research presents the empirical equations enabling to predict the discharge coefficient according to the geometrical parameters of the devices. The investigated relationships allow for a rational parameter selection for hydrodynamic vortex regulators. DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.journalhydraulicresearch.com [article] Influence of design parameters on throttling efficiency of cylindrical and conical vortex valves = Influence des paramètres de conception sur l'efficacité de l'étranglement des vannes cylindrique et coniques de vortex [texte imprimé] / Patryk Wojtowicz, Auteur ; Andrzej Kotowski, Auteur . - pp. 559-565. Hydraulique Résumé en Français Langues : Anglais (eng) in Journal of hydraulic research > Vol. 47 N° 5 (2009) . - pp. 559-565 Mots-clés : Hydraulics Hydrodynamic regulator Liquid flow Modeling Throttling 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 : Selected hydraulic test results of cylindrical and conical vortex valves in a pilot-plant scale are presented to discuss the effects of the geometric parameters and the spatial orientation of a vortex chamber. Tests performed include the effects of the inlet and outlet diameters, swirl radius, chamber height and diameter on the hydraulic characteristics. A novel, universal variable K, describing the geometry of vortex valves and grouping their geometrical parameters, is introduced. This constant K increases the quantitative accuracy of the relationship between the discharge coefficient and the geometrical parameters. A test methodology for hydrodynamic vortex regulators has been developed and was applied to environmental engineering, based on dimensional analysis. This research presents the empirical equations enabling to predict the discharge coefficient according to the geometrical parameters of the devices. The investigated relationships allow for a rational parameter selection for hydrodynamic vortex regulators. DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.journalhydraulicresearch.com

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire