Transactions of the ASME . Journal of fluids engineering, Vol. 130 N° 2. Journal of fluids engineering (Transactions of the ASME) - Fevrier 2008
| Titre : | Transactions of the ASME . Journal of fluids engineering, Vol. 130 N° 2. Journal of fluids engineering (Transactions of the ASME) - Fevrier 2008 |
| Type de document : | Bulletin |
| Paru le : | 29/09/2009 |
Dépouillements
Article : texte imprimé
Mathieu Rouméas, Auteur ;
Patrick Gilliéron, Auteur ;
Azeddine Kourta, Auteur
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A 3D numerical simulation based on the lattice Boltzmann method is carried out on a simplified car geometry (initially proposed by Ahmed, Ramm, and Falting, 1984, SAE Technical Paper series No. 840300) to analyze and establish a method for contr[...]
Article : texte imprimé
Kamil Kahveci, Auteur ;
Semiha Öztuna, Auteur
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Magnetohydrodynamics natural convection in an inclined enclosure with a partition is studied numerically using a differential quadrature method. Governing equations for the fluid flow and heat transfer are solved for the Rayleigh number varying [...]
Article : texte imprimé
P. P. Vlachos, Auteur ;
D. P. Telionis, Auteur
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Spectral analysis of laser Doppler velocimetry measurements and flow visualization are employed to study the wake of inclined cylinders piercing a free surface. The results indicate that the free surface affects vortex shedding almost two to thr[...]
Article : texte imprimé
Eriko Shimizu, Auteur ;
Koji Isogai, Auteur ;
Shigeru Obayashi, Auteur
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In conventional windmills, the high tip speed creates aerodynamic noise, and when they are used at very low Reynolds numbers, their performance deteriorates due to laminar separation. These are important issues in modern windmills. Present study[...]
Article : texte imprimé
Monica Sanda Iliescu, Auteur ;
Gabriel Dan Ciocan, Auteur ;
François Avellan, Auteur
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Partial flow rate operation of hydroturbines with constant pitch blades causes complex unstable cavitating flow in the diffuser cone. A particle image velocimetry (PIV) system allows investigating the flow velocity field in the case of a develop[...]
Article : texte imprimé
S. Collie, Auteur ;
M. Gerritsen, Auteur ;
P. Jackson, Auteur
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This paper investigates the performance of the popular k-ω and SST turbulence models for the two-dimensional flow past the flat plate at shallow angles of incidence. Particular interest is paid to the leading edge bubble that forms as the flow s[...]
Article : texte imprimé
J.-C. Jouhaud, Auteur ;
P. Sagaut, Auteur ;
B. Enaux, Auteur
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Accuracy and reliability of large-eddy simulation data in a really complex industrial geometry are invesigated. An original methodology based on a response surface for LES data is introduced. This surrogate model for the full LES problem is buil[...]
Article : texte imprimé
E. J. McKeever, Auteur ;
K. V. Sharp, Auteur
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Doublets of 48-μm-diameter polystyrene latex particles are experimentally tracked in a Poiseuille flow in a capillary tube. The rotational motion of nine doublets is observed using video microscopy with a translating stage. The particle diameter[...]
Article : texte imprimé
Noriyuki Shimiya, Auteur ;
Akira Fujii, Auteur ;
Hironori Horiguchi, Auteur
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The suppression of cavitation instabilities was attempted through the control of tip leakage vortex cavitation. The control was made by using shallow grooves, called J groove, on the casing wall. With J grooves, the onset regions of the rotating[...]
Article : texte imprimé
M. Anderson, Auteur ;
C. Richards, Auteur ;
R. Richards, Auteur
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A lumped-parameter dynamic model for an enclosed incompressible squeeze film with a central gas bubble has been derived. A new approach was applied to derive closed-form expressions for the lumped-parameter mass and damping coefficients caused b[...]
Article : texte imprimé
Ezddin A. F. Hutli, Auteur ;
Milos S. Nedeljkovic, Auteur
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Visualization of a highly submerged cavitating water jet was done by high-speed camera photography in order to study and understand the jet structure and the behavior of cloud cavitation within time and space. The influencing parameters, such as[...]
Article : texte imprimé
M. Ahmed, Auteur
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A theoretical analysis was carried out to predict the influences of wall inclination angles of large reservoirs on the onset of gas entrainment during single and dual discharges from a stratified two-phase region. The findings reveal that when t[...]
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