Transactions of the ASME . Journal of fluids engineering, Vol. 130 N° 5. Journal of fluids engineering (Transactions of the ASME) - Mai 2008
| Titre : | Transactions of the ASME . Journal of fluids engineering, Vol. 130 N° 5. Journal of fluids engineering (Transactions of the ASME) - Mai 2008 |
| Type de document : | Bulletin |
| Paru le : | 29/09/2009 |
Dépouillements
Article : texte imprimé
Hui, Hu, Auteur ;
Zifeng Yang, Auteur
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An experimental study was conducted to characterize the transient behavior of laminar flow separation on a NASA low-speed GA (W)-1 airfoil at the chord Reynolds number of 70,000. In addition to measuring the surface pressure distribution around [...]
Article : texte imprimé
Gorka S. Larraona, Auteur ;
Alejandro Rivas, Auteur ;
Juan Carlos Ramos, Auteur
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A single-jet water meter was modeled and simulated within a wide measuring range that included flow rates in laminar, transitional, and turbulent flow regimes. The interaction between the turbine and the flow, on which the operating principle of[...]
Article : texte imprimé
Yoshifumi Jodai, Auteur ;
Yoshikazu Takahashi, Auteur ;
Masashi Ichimiya, Auteur
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An experimental investigation has been made on a turbulent boundary layer near the trailing edge on a long flat plate. The flow was controlled by an additional splitter plate fitted to the trailing edge along the wake centerline. The length of t[...]
Article : texte imprimé
Toshiya Kimura, Auteur ;
Yoshida, Yoshiki, Auteur ;
Tomoyuki Hashimoto, Auteur
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Unsteady cavitation phenomena such as rotating cavitation and cavitation surge are often observed in a turbopump inducer of a rocket engine, sometimes causing undesirable oscillation of the system. Investigation of their mechanism and prediction[...]
Article : texte imprimé
Oliver Reutter, Auteur ;
Elena Smirnova, Auteur ;
Jörg Sauerhering, Auteur
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This study investigates air flow in metallic foams, which are produced by the slip reaction foam sintering (SRFS) process. It was conducted as part of the collaborative research center (SFB) 561 “Thermally Highly Loaded, Porous and Cooled Multi-[...]
Article : texte imprimé
Hidesada Kanda, Auteur ;
Takayuki Yanagiya, Auteur
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This article describes the reproduction and extended analysis of Reynolds’ color-band experiment. Reynolds found two critical Reynolds numbers (Rc) in pipe flows: Rc1 of 12,830 from laminar to turbulent flow and Rc2 of 2030 from turbulent to lam[...]
Article : texte imprimé
P. Oshkai, Auteur ;
T. Yan, Auteur ;
A. Velikorodny, Auteur
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Acoustic power generated by turbulent flow over a coaxial side branch (deep cavity) resonator mounted in a rectangular duct is calculated using a semiempirical approach. Instantaneous flow velocity is decomposed into an irrotational acoustic com[...]
Article : texte imprimé
T. A. Jankowski, Auteur ;
E. N. Schmierer, Auteur ;
F. C. Prenger, Auteur
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A simple model is developed here to predict the pressure drop and discharge coefficient for incompressible flow through orifices with length-to-diameter ratio greater than zero (orifice tubes) over wide ranges of Reynolds number. The pressure dr[...]
Article : texte imprimé
Noor Afzal, Auteur
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The turbulent boundary layer subjected to strong adverse pressure gradient near the separation region has been analyzed at large Reynolds numbers by the method of matched asymptotic expansions. The two regions consisting of outer nonlinear wake [...]
Article : texte imprimé
M. A. Friedrich, Auteur ;
H. Lan, Auteur ;
J. L. Wegener, Auteur
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The behavior of a shear-driven thin liquid film at a sharp expanding corner is of interest in many engineering applications. However, details of the interaction between inertial, surface tension, and gravitational forces at the corner that resul[...]
Article : texte imprimé
Amy Warncke Lang, Auteur ;
William D. Thacker, Auteur
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An experimental study was performed to investigate the interaction of water waves with a surface-parallel oriented vortex at a free surface. Shadowgraph images were obtained visualizing surface deformations. The role of vortex strength and the d[...]
Article : texte imprimé
S. Paruya, Auteur ;
P. Bhattacharya, Auteur
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Thermohydraulic phenomena of a steam-water natural-circulation (SWNC) system are very complicated, particularly, during its start-up and shutdown. Its performance strongly depends on the circulation inside it. Accurate quantification of the flow[...]
Article : texte imprimé
W. Gyllenram, Auteur ;
H. Nilsson, Auteur
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An adaptive low-pass filtering procedure for the modeled turbulent length and time scales is derived and applied to Wilcox’ original low reynolds number k-ω turbulence model. It is shown that the method is suitable for complex industrial unstead[...]
Article : texte imprimé
Roger E. Khayat, Auteur
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Linear stability analysis of fully developed axisymmetric steady spatially modulated Taylor–Couette flow (TCF) is carried out in the narrow-gap limit. In contrast to unforced TCF, only the vortical base flow is possible in the forced case. It is[...]
Article : texte imprimé
Mohammad Layeghi, Auteur ;
Hamid Reza Seyf, Auteur
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Analytical analysis of fluid flow in an annular microchannel subjected to uniform wall injection at various Reynolds numbers is presented. The classical Navier–Stokes equations are used in the present study. Mathematically, using an appropriate [...]
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