Transactions of the ASME . Journal of fluids engineering, Vol. 132 N° 4. Journal of fluids engineering (Transactions of the ASME) - Avril 2010
| Titre : | Transactions of the ASME . Journal of fluids engineering, Vol. 132 N° 4. Journal of fluids engineering (Transactions of the ASME) - Avril 2010 |
| Type de document : | Bulletin |
| Paru le : | 15/06/2010 |
Dépouillements
Article : texte imprimé
Kideok Ro, Auteur
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This study was conducted in an attempt to improve the hydrodynamic performance of a Weis-Fogh type ship propulsion mechanism by installing a spring to the wing so that the opening angle of the wing can be changed automatically. With the prototyp[...]
Article : texte imprimé
Tariq Ahmad, Auteur ;
Ibrahim Hassan, Auteur
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The study of the entrance region of microchannels and microdevices is limited, yet important, since the effect on the flow field and heat transfer mechanisms is significant. An experimental study has been carried out to explore the laminar hydro[...]
Article : texte imprimé
S. Bhattacharyya, Auteur ;
A. K. Nayak, Auteur
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The motivation of the present study is to generate vortical flow by introducing channel wall roughness in the form of a wall mounted block that has a step-jump in ζ-potential on the upper face. The characteristics for the electrokinetic flow are[...]
Article : texte imprimé
Babak Emami, Auteur ;
Markus Bussmann, Auteur ;
Honghi Tran, Auteur
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An explicit cell-centered finite volume solver coupled to a k−ε turbulence model corrected for structural compressibility fails to satisfactorily predict the behavior of under-expanded supersonic jets exhausting into still air, because the model[...]
Article : texte imprimé
Dan Mateescu, Auteur ;
Manuel Muñoz, Auteur ;
Olivier Scholz, Auteur
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The inflow velocities in various components of many engineering systems often display variations in time (fluctuations) during the operation cycle, which may substantially affect the flow-induced vibrations and instabilities of these systems. Fo[...]
Article : texte imprimé
L. Momayez, Auteur ;
G. Delacourt, Auteur ;
P. Dupont, Auteur
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Experimental measurements of flow and heat transfer in a concave surface boundary layer in the presence of streamwise counter-rotating Görtler vortices show conclusively that local surface heat-transfer rates can exceed that of the turbulent fla[...]
Article : texte imprimé
Bérengère Podvin, Auteur ;
Yann Fraigneau, Auteur ;
Julien Jouanguy, Auteur
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We use proper orthogonal decomposition (POD) to estimate the flow in the near-wall region based on information from the outer buffer layer. Our goal is to assess how the flow structures in the inner wall region are connected to those further awa[...]
Article : texte imprimé
Karen A. Flack, Auteur ;
Michael P. Schultz, Auteur
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A review of predictive methods used to determine the frictional drag on a rough surface is presented. These methods utilize a wide range of roughness scales, including roughness height, pitch, density, and shape parameters. Most of these scales [...]
Article : texte imprimé
Seyyed Hossein Hosseini, Auteur ;
Wenqi Zhong, Auteur ;
Mohsen Nasr Esfahany, Auteur
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A two-dimensional transient Eulerian model integrating the kinetic theory for emulsion phase is used to simulate the bubbling and slugging gas-solid fluidized beds, including the Geldart B and D particles, respectively. CFD results show that uti[...]
Article : texte imprimé
Rickard E. Bensow, Auteur ;
Göran Bark, Auteur
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We describe an approach to simulate dynamic cavitation behavior based on large eddy simulation of the governing flow, using an implicit approach for the subgrid terms together with a wall model and a single fluid, two-phase mixture description o[...]
Article : texte imprimé
Kelly A. Stephani, Auteur ;
David B. Goldstein, Auteur
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Viscous drag reduction on a submerged surface can be obtained both in the limit of an unbroken gas film coating the solid and in the nanobubble or perhaps microbubble coating regime when an air layer is created with superhydrophobic coatings. We[...]
Article : texte imprimé
Behzad Ghadiri Dehkordi, Auteur ;
Hamed Houri Jafari, Auteur
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Flow over a circular cylinder with detached short splitter-plates is numerically simulated in order to assess the suppression of periodic vortex shedding. A finite-volume solver based on the Cartesian-staggered grid is implemented, and the ghost[...]
Article : texte imprimé
O. D. Makinde, Auteur ;
P. O. Olanrewaju, Auteur
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This study aims to analyze the effects of thermal buoyancy on the laminar boundary layer about a vertical plate in a uniform stream of fluid under a convective surface boundary condition. Using a similarity variable, the governing nonlinear part[...]
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