Results 11 to 20 of about 2,159 (172)

Simulation of Cavitating Flows in Diesel Injectors Simulation des écoulements en cavitation dans les injecteurs diesel

open access: yesOil & Gas Science and Technology, 2006
With a new two fluid model it is possible to carry out three-dimensional CFD calculations of cavitating flows in hydraulic components of Diesel injection systems. As model geometries a ball valve, a sac-hole nozzle and a one-hole nozzle have been used to
Von Dirke M.   +4 more
doaj   +1 more source

Etat de l'art en fracturation hydraulique State-Of-The-Art in Hydraulic Fracturing

open access: yesOil & Gas Science and Technology, 2006
Cet article est un abrégé des connaissances de base sur la mécanique de la fracturation hydraulique (éléments de mécanique de la rupture, pression de fracturation et pression de fermeture), sur l'avancement actuel des travaux de modélisation de la ...
Bouteca M., Sarda J. P.
doaj   +1 more source

Model predictions and experimental results for the rotordynamic characteristics of leakage flows in centrifugal pumps [PDF]

open access: yes, 1993
The role played by fluid forces in determining the rotordynamic stability and characteristics of a centrifugal pump is gaining increasing attention. The present research investigates the contributions to the rotordynamic forces from the discharge-to ...
Brennen, Christopher E.   +1 more
core   +1 more source

Effect of solid thermal conductivity and particle-particle contact on effective thermodiffusion coefficient in porous media [PDF]

open access: yes, 2011
Transient mass transfer associated to a thermal gradient through a saturated porous medium is studied experimentally and theoretically to determine the effect of solid thermal conductivity and particle-particle contact on thermodiffusion processes.
Davarzani, Hossein   +2 more
core   +3 more sources

Multi-Dimensional Modeling of the Aerodynamic and Combustion in Diesel Engines Modélisation multidimensionnelle de l'aérodynamique et de la combustion dans les moteurs diesel

open access: yesOil & Gas Science and Technology, 2006
The purpose of this paper is to present an overview of Computational Fluid Dynamics (CFD) and combustion simulation applications to automotive power train development, and the methodologies we developed at PSA to integrate numerical simulation into the ...
Delhaye B., Taklanti A.
doaj   +1 more source

Automatic Block Decomposition of Parametrically Changing Volumes Décomposition automatique par blocs de volumes variables paramétrisés

open access: yesOil & Gas Science and Technology, 2006
A method is introduced for the automatic decomposition of time-varying volumes such as those encountered in engine FEA and CFD. Examples of the application of this method to all-hexahedral mesh generation are also presented.
Taghavi R.
doaj   +1 more source

Formulation de milieux et solutions pour les procédés Pharmaceutiques : extrapolation par Computational Fluid Dynamics et validation expérimentale [PDF]

open access: yesMATEC Web of Conferences
La fabrication des vaccins et de leurs produits intermédiaires est strictement réglementée et régie par les Directives des autorités sanitaires (European Medicines Agency en 2014).
Andreux Régis   +2 more
doaj   +1 more source

Écoulements au-dessus de macro-rugosités artificielles constituées de plots

open access: yesKnowledge and Management of Aquatic Ecosystems, 1999
Les écoulements au-dessus de macro-rugosités, dans lesquels les dimensions des éléments rugueux sont du même ordre de grandeur que les profondeurs des écoulements, trouvent de nombreuses applications dans l'hydraulique environnementale, en particulier ...
RICHARD S., CHORDA J., LARINIER M.
doaj   +1 more source

Analytical continuum mechanics \`a la Hamilton-Piola: least action principle for second gradient continua and capillary fluids [PDF]

open access: yes, 2013
In this paper a stationary action principle is proven to hold for capillary fluids, i.e. fluids for which the deformation energy has the form suggested, starting from molecular arguments, for instance by Cahn and Hilliard.
Auffray, N.   +4 more
core   +2 more sources

Quantitative Modelling of Immiscible Displacement in Porous Media. a Network Approach Modèle quantitatif pour l'étude des déplacements non miscibles en milieux poreux. Modèle à reseau maillé

open access: yesOil & Gas Science and Technology, 2006
Adequate quantitative models for studying immiscible displacement in porous media are presently not available. This is probably due ta thé extreme complexity of the displacement phenomena, pore structure and lack of understanding of the basic mechanisms.
Singhal A. K., Somerton W. H.
doaj   +1 more source

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