Transactions of the ASME . Journal of fluids engineering, Vol. 132 N° 12. Journal of fluids engineering - Décembre 2010
| Titre : | Transactions of the ASME . Journal of fluids engineering, Vol. 132 N° 12. Journal of fluids engineering - Décembre 2010 |
| Type de document : | Bulletin |
| Paru le : | 21/04/2011 |
Dépouillements
Article : texte imprimé
Soo-Yong Cho, Auteur ;
Chong-Hyun Cho, Auteur ;
Kook-Young Ahn, Auteur
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The partial admission technique is widely used to control the output power of turbines. In some cases, it has more merits than full admission. However, additional losses, such as expansion, mixing, or pumping, are generated in partial admission [...]
Article : texte imprimé
Pramod B. Salunkhe, Auteur ;
A. M. Pradeep, Auteur
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The present paper describes the use of Morlet wavelet transform in understanding the stall inception mechanism in a single stage axial flow fan. Unsteady pressure data from wall mounted sensors were used in the wavelet transforms. This paper was[...]
Article : texte imprimé
Yanhui Wu, Auteur ;
Wuli Chu, Auteur ;
Haoguang Zhang, Auteur
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This paper presents numerical and experimental investigations about grooved casing treatment with the help of a high-speed small-scale compressor rotor. First, the numerical investigation seeks to offer a contribution of understanding the workin[...]
Article : texte imprimé
Adam Robinson, Auteur ;
Hervé Morvan, Auteur ;
Carol Eastwick, Auteur
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Within an aero-engine, bearing chamber oil is provided for components to lubricate and cool. This oil must be efficiently removed (scavenged) from the chamber to ensure that it does not overheat and degrade. Bearing chambers typically contain a [...]
Article : texte imprimé
Antoine Fornari, Auteur ;
Matthew Sullivan, Auteur ;
Hua Chen, Auteur
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We have studied the phenomenon of squeeze film damping in a liquid with a microfabricated vibrating plate oscillating in its fundamental mode with out-of-plane motion. It is paramount that this phenomenon be understood so that proper choices can[...]
Article : texte imprimé
Sunil Lakshmipathy, Auteur ;
Sharath S. Girimaji, Auteur
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The objective of this study is to evaluate the capability of the partially averaged Navier–Stokes (PANS) method in a moderately high Reynolds number (ReD 1.4×105) turbulent flow past a circular cylinder. PANS is a bridging closure model purporte[...]
Article : texte imprimé
Eunhwan Jeong, Auteur ;
Sharath S. Girimaji, Auteur
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The partially averaged Navier–Stokes (PANS) approach is a bridging closure model intended for any level of resolution between the Reynolds averaged Navier–Stokes (RANS) method and direct numerical simulations. In this paper, the proposed closure[...]
Article : texte imprimé
Abbas H. Sulaymon, Auteur ;
Catherine A. M. E. Wilson, Auteur ;
Abeer I. Alwared, Auteur
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The virtual mass coefficient is determined experimentally for the motion of two spheres side by side and in line in a power law fluid. The velocities of the two accelerating spheres and their separation distance was measured as they accelerated [...]
Article : texte imprimé
Nagendra Dittakavi, Auteur ;
Aditya Chunekar, Auteur ;
Steven Frankel, Auteur
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Large eddy simulation of turbulent cavitating flow in a venturi nozzle is conducted. The fully compressible Favre-filtered Navier–Stokes equations are coupled with a homogeneous equilibrium cavitation model. The dynamic Smagorinsky subgrid-scale[...]
Article : texte imprimé
Air-augmented waterjets derive their propulsion from compressed gas mixed directly into the main flow. The gas bubbles expand as the mixture passes through the pressure gradient of the convergent nozzle, and energy is imparted to the water from [...]
Article : texte imprimé
Matteo Martinelli, Auteur ;
Vladimir Viktorov, Auteur
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This paper presents a fast method for determining the conductance of gas microfluidic devices with low flow rates and very small pressure drops starting from 30 Pa, corresponding to Re=0.3. This method is based on discharging a gas-pressurized c[...]
Article : texte imprimé
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