Transactions of the ASME . Journal of fluids engineering, Vol. 130 N° 11. Journal of fluids engineering (Transactions of the ASME) - Novembre 2008
| Titre : | Transactions of the ASME . Journal of fluids engineering, Vol. 130 N° 11. Journal of fluids engineering (Transactions of the ASME) - Novembre 2008 |
| Type de document : | Bulletin |
| Paru le : | 29/09/2009 |
Dépouillements
Article : texte imprimé
Nellyana Gonzalo Flores, Auteur ;
Eric Goncalvès, Auteur ;
Regiane Fortes Patella, Auteur
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A computational fluid dynamics model for cavitation simulation was investigated and compared with experimental results in the case of a three-blade industrial inducer. The model is based on a homogeneous approach of the multiphase flow coupled w[...]
Article : texte imprimé
Kengo Kikuta, Auteur ;
Yoshida, Yoshiki, Auteur ;
Mitsuo Watanabe, Auteur
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Based on the length of the tip cavitation as an indication of cavitation, we focused on the effect of thermodynamics on cavitation performances and cavitation instabilities in an inducer. Comparison of the tip cavity length in liquid nitrogen (7[...]
Article : texte imprimé
Luca d’Agostino, Auteur ;
Lucio Torre, Auteur ;
Angelo Pasini, Auteur
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A reduced order model for preliminary design and noncavitating performance prediction of tapered axial inducers is illustrated. In the incompressible, inviscid, irrotational flow approximation, the model expresses the 3D flow field in the blade [...]
Article : texte imprimé
C. C. Gutiérrez-Torres, Auteur ;
Y. A. Hassan, Auteur ;
J. A. Jimenez-Bernal, Auteur
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Turbulent boundary layer modification in a channel flow using injection of microbubbles as a means to achieve drag reduction was studied. The physical mechanism of this phenomenon is not yet fully understood. To obtain some information related t[...]
Article : texte imprimé
M. Agelinchaab, Auteur ;
M. F. Tachie, Auteur
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This paper reports an experimental study of the combined effects of rib roughness and pressure gradient on turbulent flows produced in asymmetric converging and diverging channels. Transverse square ribs with pitch-to-height ratio of 4 were atta[...]
Article : texte imprimé
A numerical study of the axisymmetric flow in a cylindrical chamber of height H is presented, which is driven by a bottom disk rotating at angular velocity Ω. However, unlike most previous studies, the present rotating disk is of smaller radius [...]
Article : texte imprimé
Raúl Barrio, Auteur ;
Blanco, Eduardo, Auteur ;
Jorge Parrondo, Auteur
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A study is presented on the fluid-dynamic pulsations and the corresponding dynamic forces generated in a centrifugal pump with single suction and vaneless volute due to blade-volute interaction. Four impellers with different outlet diameters, ob[...]
Article : texte imprimé
Changgu Lee, Auteur ;
Selin Arslan, Auteur ;
Frechette, Luc G., Auteur
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This paper introduces and experimentally demonstrates the design concept of multistage microturbomachinery, which is fabricated using silicon microfabrication technology. The design process for multistage microscale turbomachinery based on meanl[...]
Article : texte imprimé
T. P. Chong, Auteur ;
P. F. Joseph, Auteur ;
P. O. Davies, Auteur
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This paper represents the results of an experimental program with the aim of controlling the flow in a highly unstable 90deg curved diffuser. The diffuser, which is an integral part of an open jet wind tunnel at the University of Southampton, ha[...]
Article : texte imprimé
Andreas Gross, Auteur ;
Hermann F. Fasel, Auteur
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Laminar separation on the suction side of low-pressure turbine blades at low Reynolds number operating conditions deteriorates overall engine performance and has to be avoided. This requirement affects the blade design and poses a limitation on [...]
Article : texte imprimé
Y. S. Muzychka, Auteur ;
J. Edge, Auteur
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Non-Newtonian fluid flow in noncircular ducts and microchannels is examined. A simple model is proposed for power law fluids based on the Rabinowitsch–Mooney formulation. By means of a new characteristic length scale, the square root of the cros[...]
Article : texte imprimé
Aloke Kumar, Auteur ;
Venu M. Gorti, Auteur ;
Hao Shang, Auteur
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Optical diffusometry is a technique used for measuring diffusion. This work explores the possibility of directly measuring diffusion coefficients of submicron particles for pathogen detection. The diffusion coefficient of these particles is a fu[...]
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