Transactions of the ASME . Journal of fluids engineering, Vol. 130 N° 9. Journal of fluids engineering (Transactions of the ASME) - Septembre 2008
| Titre : | Transactions of the ASME . Journal of fluids engineering, Vol. 130 N° 9. Journal of fluids engineering (Transactions of the ASME) - Septembre 2008 |
| Type de document : | Bulletin |
| Paru le : | 29/09/2009 |
Dépouillements
Article : texte imprimé
Hassan Hemida, Auteur ;
Siniša Krajnovic, Auteur
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Cross-wind flows around two simplified high-speed trains with different nose shapes are studied using large-eddy simulation (LES) with the standard Smagorinsky model. The Reynolds number is 3×105 based on the height of the train and the freestre[...]
Article : texte imprimé
Rafael Ballesteros-Tajadura, Auteur ;
Sandra Velarde-Suárez, Auteur ;
Juan Pablo Hurtado-Cruz, Auteur
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Centrifugal fans are widely used in several applications, and in some cases, the noise generated by these machines has become a serious problem. The centrifugal fan noise is frequently dominated by tones at the blade passing frequency as a conse[...]
Article : texte imprimé
M. T. Schobeiri, Auteur
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The development of steady wake flow downstream of a cylindrical rod within a curved channel under the influence of positive, negative, and zero streamwise pressure gradients is theoretically and experimentally investigated. The measured asymmetr[...]
Article : texte imprimé
K. M. Guleren, Auteur ;
I. Afgan, Auteur ;
A. Turan, Auteur
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The laminarization phenomenon for the flow under the combined effect of strong curvature and rotation is discussed based on numerical predictions of large-eddy simulation (LES). Initially, the laminarization process is presented for the fully de[...]
Article : texte imprimé
Ankur Deep Bordoloi, Auteur ;
P. K. Panigrahi, Auteur
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Mixing of two variable-density jets, one of which is essentially a negatively buoyant jet (He) and the other a nonbuoyant jet (O2) is studied experimentally using digital particle image velocimetry technique for separated nozzle geometry. Two je[...]
Article : texte imprimé
Hussameddine S. Kabbani, Auteur ;
Martin J. Mack, Auteur ;
Sang W. Joo, Auteur
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A new approximate solution for the velocity profile of steady incompressible magnetohydrodynamic (MHD) flows in a rectangular microchannel driven by the Lorentz force is proposed. Mean velocity and mass flow rate in a channel, subsequently deriv[...]
Article : texte imprimé
Luo Jing, Auteur ;
Jian Li, Auteur ;
Dong Guangneng, Auteur
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In order to investigate the erosion extent and mode of cavitation in different states by the commercial code FLUENT and evaluate the reliability of the software, the collapse processes of a vapor bubble, which was near or on the wall under the c[...]
Article : texte imprimé
Phu D. Tran, Auteur
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A homogeneous model for prediction of the longitudinal distributions of pressure, velocity, and void fraction for two-phase bubbly flow in horizontal pipes is presented. The mixture flow is described by a system of two nondimensional ordinary di[...]
Article : texte imprimé
Jonas P. Gustavsson, Auteur ;
Kyle C. Denning, Auteur ;
Corin Segal, Auteur
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Cavitation was studied for a NACA0015 hydrofoil using a material that simulates cryogenic behavior. Several angles of attack and flow speeds up to 8.6m∕s were tested. The material used, 2-trifluoromethyl-1,1,1,2,4,4,5,5,5-nonafluoro-3-pentanone,[...]
Article : texte imprimé
Dufour, G., Auteur ;
J.-B. Cazalbou, Auteur ;
X. Carbonneau, Auteur
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Rotation and curvature (RC) effects on turbulence are expected to impact losses and flow structure in turbomachines. This paper examines two recent eddy-viscosity-model corrections devised to account for these effects: the Spalart and Shur (1997[...]
Article : texte imprimé
U. Hampel, Auteur ;
D. Hoppe, Auteur ;
A. Bieberle, Auteur
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Gamma ray tomography has been used to visualize fluid distributions in a rotating fluid coupling in different operation points at a pump speed of 780rpm and lower turbine speeds. The gamma ray computed tomography system comprises a Cs-137 isotop[...]
Article : texte imprimé
Ghislain Michaux, Auteur ;
Olivier Vauquelin, Auteur ;
Elsa Gauger, Auteur
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An experimental procedure was developed for determining both the density and flow rate of a gas from measurements of pressure drops caused by an abrupt flow area contraction in a cylindrical pipe. Experiments were carried out by varying the dens[...]
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