Transactions of the ASME . Journal of fluids engineering, Vol. 130 N° 10. Journal of fluids engineering (Transactions of the ASME) - Octobre 2008
| Titre : | Transactions of the ASME . Journal of fluids engineering, Vol. 130 N° 10. Journal of fluids engineering (Transactions of the ASME) - Octobre 2008 |
| Type de document : | Bulletin |
| Paru le : | 29/09/2009 |
Dépouillements
Article : texte imprimé
David Quin, Auteur ;
Ronan Grimes, Auteur
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Microscale axial flow fans were investigated in response to the growing cooling requirements of the electronics industry. The two main challenges of this investigation were manufacture of a fully functional fan at the microscale, and performance[...]
Article : texte imprimé
Tao Xing, Auteur ;
Pablo Carrica, Auteur ;
Frederick Stern, Auteur
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A procedure is proposed to perform ship hydrodynamics computations for a wide range of velocities in a single run, herein called the computational towing tank. The method is based on solving the fluid flow equations using an inertial earth-fixed[...]
Article : texte imprimé
Antonio Filippone, Auteur
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This paper presents the results of a computational analysis on a three-dimensional unsteady flow inside a resonant cavity. The cavity was fully immersed in a channel flow, had a squared cross section, and a spanwise aspect ratio equal to 3. It w[...]
Article : texte imprimé
Aytac Arikoglu, Auteur ;
Guven Komurgoz, Auteur ;
Ibrahim Ozkol, Auteur
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In this study, it is the first time that the effect of slip on the entropy generation is investigated for the flow over a rotating single free disk. The problem is considered for steady and axially symmetrical case in a Newtonian ambient fluid. [...]
Article : texte imprimé
Senthilkumaran Radhakrishnan, Auteur ;
Piomelli, Ugo, Auteur ;
Anthony Keating, Auteur
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The performance of wall-modeled large-eddy simulation (WMLES) based on hybrid models, in which the inner region is modeled by Reynolds-averaged Navier–Stokes (RANS) equation and the outer region is resolved by large-eddy simulation (LES), can ma[...]
Article : texte imprimé
W. Sheng, Auteur ;
R. A. Galbraith, Auteur ;
F. N. Coton, Auteur
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This research presents some common features of oscillatory airfoils, and the method for indicating dynamic stall onset for the unsteady process. Under deep stall conditions, the stall-onset angle in oscillation is independent of the mean angle o[...]
Article : texte imprimé
A. Nakayama, Auteur ;
F. Kuwahara, Auteur
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This study focuses on Nakayama and Kuwahara’s two-equation turbulence model and its modifications, previously proposed for flows in porous media, on the basis of the volume averaging theory. Nakayama and Kuwahara’s model is generalized so that i[...]
Article : texte imprimé
A. F. Hamoudi, Auteur ;
A. Fartaj, Auteur ;
G. W. Rankin, Auteur
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The results of an experimental investigation of the energy separation performance of a microscale Ranque–Hilsch vortex tube are presented. The supply channel Reynolds number of a microscale Ranque–Hilsch vortex tube is varied over a considerable[...]
Article : texte imprimé
V. Raghavan, Auteur ;
B. Premachandran, Auteur
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Microscale gas flow through channels with a right-angled bend has been numerically analyzed to study the effect of the fillet radius on flow characteristics. The flow is assumed to be incompressible, laminar, and hydrodynamically developing. The[...]
Article : texte imprimé
P. A. Brandner, Auteur ;
J. L. Roberts, Auteur ;
G. J. Walker, Auteur
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The general performance of an asymmetric cavitation tunnel contraction is investigated using computational fluid dynamics (CFD) including the effects of fluid viscosity and physical scale. The horizontal and vertical profiles of the contraction [...]
Article : texte imprimé
Raúl Sánchez, Auteur ;
Luis Juana, Auteur ;
Francisco V. Laguna, Auteur
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Cavitation effects in valves and other sudden transitions in water distribution systems are studied as their better understanding and quantification is needed for design and analysis purposes and for predicting and controlling their operation. T[...]
Article : texte imprimé
Paul F. Fischer, Auteur ;
Gary K. Leaf, Auteur ;
Juan M. Restrepo, Auteur
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In the work of Fischer (2002, “Forces on Particles in an Oscillatory Boundary Layer ,” J. Fluid Mech., 468, pp. 327–347, 2005; “Influence of Wall Proximity on the Lift and Drag of a Particle in an Oscillatory Flow ,” ASME J. Fluids Eng., 127, [...]
Article : texte imprimé
G. Yu, Auteur ;
E. J. Avital, Auteur ;
J. J. Williams, Auteur
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Flows past a free surface piercing cylinder are studied numerically by large eddy simulation at Froude numbers up to FrD=3.0 and Reynolds numbers up to ReD=1×105. A two-phase volume of fluid technique is employed to simulate the air-water flow a[...]
Article : texte imprimé
Katia María Argüelles Díaz, Auteur ;
Jesús Manuel Fernández Oro, Auteur ;
Eduardo Blanco Marigorta, Auteur
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This paper analyzes the operative characteristics of a three-hole cobra type probe especially designed to attain an angular range higher than 180deg for planar turbulent flows. A new calibration and data reduction method are also introduced, dis[...]
Article : texte imprimé
Tongbeum Kim, Auteur ;
Tian Jian Lu, Auteur
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Pressure drop through anisotropic porous mediumlike cylinder bundles is experimentally examined in turbulent flow regime. Three porosities, ε=0.66, 0.82, and 0.90, are considered. The flow blockage by the cylinder bundles is varied, with the yaw[...]
Article : texte imprimé
K Kibicho, Auteur ;
A. T. Sayers, Auteur
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Due to adverse pressure gradient along the diverging walls of wide-angled diffusers, the attached flow separates from one wall and remains attached permanently to the other wall in a process called stalling. Separated diffuser flows provide a cl[...]
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