Academic literature on the topic 'Écoulement chargé en particules'
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Journal articles on the topic "Écoulement chargé en particules":
Burnage, H. "Migration de particules dans un écoulement turbulent." La Houille Blanche, no. 7-8 (November 1987): 521–24. http://dx.doi.org/10.1051/lhb/1987040.
Condoret, J. S., J. P. Riba, and H. Angelino. "Dispersion dans les lits de particules avec écoulement pulse." Canadian Journal of Chemical Engineering 67, no. 1 (February 1989): 45–50. http://dx.doi.org/10.1002/cjce.5450670108.
Bielinski, Clément, and Badr Kaoui. "Transfert de masse non-stationnaire depuis des particules sous écoulement." Comptes Rendus. Mécanique 351, S3 (August 2, 2023): 1–12. http://dx.doi.org/10.5802/crmeca.204.
Auradou, Harold, Carine Douarche, Adama Creppy, Hector Matias Lopez, and Éric Clément. "Viscosité d’une suspension de bactéries : des efforts individuels aux efforts collectifs." Reflets de la physique, no. 57 (April 2018): 20–23. http://dx.doi.org/10.1051/refdp/201857020.
Marot, Didier, Bikram Oli, Rachel Gelet, and Fateh Bendahmane. "Nouveau dispositif pour l’étude de la suffusion suivant différents états mécaniques." Revue Française de Géotechnique, no. 178 (2024): 3. http://dx.doi.org/10.1051/geotech/2024006.
Aguirre, César, Yu Guo, and Michel Ayrault. "Dispersion de particules solides en mouvement de saltation dans un écoulement turbulent." Comptes Rendus Mécanique 332, no. 8 (August 2004): 627–32. http://dx.doi.org/10.1016/j.crme.2004.03.015.
BENDAHMANE, Fateh. "Migration de particules fines sous écoulement: caractérisation et impact sur la résistance au cisaillement." Revue Française de Génie Civil 8, no. 1 (January 2004): 102. http://dx.doi.org/10.1080/12795119.2004.9692563.
Allais, Irène, Graciela Alvarez, and Denis Flick. "Analyse du transfert thermique entre un cylindre et un écoulement d'air faiblement chargé en gouttelettes d'eau." Revue Générale de Thermique 36, no. 4 (April 1997): 276–88. http://dx.doi.org/10.1016/s0035-3159(97)80688-5.
Feuillebois, François. "Entraînement de particules par interactions hydrodynamiques dans un champ de force avec écoulement de cisaillement." Mécanique & Industries 5, no. 5 (September 2004): 583–88. http://dx.doi.org/10.1051/meca:2004060.
Guingo, Mathieu, and Jean-Pierre Minier. "Modélisation stochastique du dépôt et de la remise en suspension de particules dans un écoulement turbulent." La Houille Blanche, no. 1 (2011): 82–86. http://dx.doi.org/10.1051/lhb/2011011.
Dissertations / Theses on the topic "Écoulement chargé en particules":
El, Kawafi Abdulghadir. "Colmatage d'un milieu poreux saturé soumis à un écoulement chargé de particules." Le Havre, 2010. http://www.theses.fr/2010LEHA0017.
Processes of the mobilisation, the transport and the deposition of solid particles in porous media are an important research topic in different engineering fields and industrials applications. Clogging is a direct consequence of particles transport and deposition in the porous medium resulting on a dramatic reduction in permeability. This thesis aimed to investigate the influence of certain physical parameters such as i) the structure of porous medium, ii) the suspended particles and iii) the hydraulic conditions on the clogging mechanisms that generate the damage of the porous medium. Porous medium damage is identified by the decline of its porosity and its permeability. A parametric experimental study is conducted on laboratory columns. The particles transfer, including the initiation, the development and the localization of clogging is followed by the measurement of i) the hydraulic characteristics of the porous medium, ii) the size distribution of the recovered particles in the effluent, iii) the mass of the deposited particles and its size distribution. Many interesting results are obtained, on the role of each parameter studied, on the space-time evolution of the clogging
Anand, Karan. "Simulation numérique des interactions particule-particule et particule-paroi dans les écoulements turbulents chargés en particules non-sphériques." Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSEP014.
There is no denying the fact that particle-laden flows are a frequent occurrence both naturally as well as at the industrial stage. Understanding the behaviour of these flows is complicated because, in addition to the stochastic nature of the turbulent carrier phase, we have to deal with the random behaviour of the dispersed phase and how they affect each other. It is imperative to have detailed knowledge regarding the nature of the dispersed phase (particle-size distribution, shape and how it interacts with one another (collisions, electrostatic forces). A majority of the existing literature on particle-laden flows deals with idealized spherical particles. Whereas, many processes including both natural (ice crystals, pollen grains, phytoplanktons) and industrial (textile or pulp fibres, combustion soot) have particles that are anisotropic in shape. Studying the motion and dynamics of an anisotropic particle in a turbulent is a challenging task. One has to take into account the orientation and rotational motion of the particles which are strongly coupled with the translational motion of the particle. Little is known regarding the effect of collisions if particles are assumed to have a generally ellipsoidal shape. Even frictionless collisions lead to transfer between translational and rotational kinetic energies. This inherent coupling of translation and rotational motion can noticeably change the configuration of the flow. Furthermore, the collision rates and timescales for inertial non-spherical particles have not been studied in this framework. Hence, the purpose of this study is to analyze collisions in non-homogeneous statistically steady flows loaded with ellipsoidal particles to understand, identify the dominant effect and support the development of statistical Lagrangian (Monte-Carlo) or Eulerian approaches. The effect of collisions has been investigated and modelled first for gas-solid channel flow with a binary mixture of spherical particles. Then collisions were examined for ellipsoidal particles in a dry granular flow. Finally, the effect of particle shape on collisions is studied in a channel flow. The fluid drag and lift forces as well as torques applied on the ellipsoidal particles were considered in this case
Petitjean, Alain. "Simulation lagrangienne d'écoulements gaz-solide en conduite avec prise en compte des interactions entre particules." Nancy 1, 1994. http://www.theses.fr/1994NAN10061.
Dugois, Kévin. "Simulation à l’échelle microscopique et analyse macroscopique de l’imprégnation d’un matériau composite par un fluide chargé en particules." Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0011/document.
In order to improve thermo-mechanical behavior of tubine blades in SAFRAN engines plane, a new composite material is necessary. The manufacturing process to obtain this composite is intricate and requires a two steps fluid densification process. This thesis focuses on numerical simulation of the first one called Slurry Cats/APS. In this step, suspended particles are introducted and captured in the reinforcement. For that purpose,we carry out a model at fiber scale, using Navier-Stokes equations in incompressible and monophasic formulation, Phillips equations [Phillips et al., 1992] and a rheological law [Krieger, 1972]. After validation step consisting in a comparison of computational results with experiments [Hampton et al., 1997] and theorical law [Belfort et al., 1994], this model has been used to simulate flow around geometries similar to those encountered in our composite material
Tekam, Sydney-Miles. "Modélisation et simulation numérique d'écoulements gazeux chargés de particules d'huile dans un circuit de décantation de moteur." Paris, ENSAM, 2006. http://www.theses.fr/2006ENAM0016.
vermorel, olivier. "Etude numérique et modélisation de la modulation de la turbulence dans un écoulement de nappe chargée en particules." Phd thesis, Institut National Polytechnique de Toulouse - INPT, 2003. http://tel.archives-ouvertes.fr/tel-00007407.
Vermorel, Olivier. "Étude numérique et modélisation de la modulation de la turbulence dans un écoulement de nappe chargée en particules." Toulouse, INPT, 2003. http://ethesis.inp-toulouse.fr/archive/00000004/.
Schneider, Jean. "Dynamique non-newtonienne de courants de gravité chargés en particules : Étude en régime turbulent." Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0308.
Gravity currents are geophysical phenomena that occur mainly in oceanic environments. These currents have been the subject of numerous studies in the absence of particles. However, their dynamics become significantly more complex when particles are in suspension. In this thesis, we aim to characterize the dynamics of these currents in the presence of particles in multiple configurations corresponding to those found in nature. The use of new measurement techniques with high spatial and temporal resolution enables us to probe the internal structure of these currents in the case of isodense flows, and to isolate the effects of high-concentration viscosity. This technique can then be used to probe the internal structure of particle-laden gravity currents according to their buoyancy properties (sedimentation, isodensity, creaming). Finally, configurations representative of those found in nature reveal dynamics far more complex than expected. The appearance of convection effects is revealed by the study of particle-laden hypopycnal currents
Sagot, Benoît. "Contribution à l'étude du transfert thermophorétique, appliqué à l'intensification des processus de séparation gaz/particules en écoulement à phase dispersée." Compiègne, 2010. http://www.theses.fr/2010COMP1903.
The present study investigates the improvement possibilities of aerosol capture efficiency, by the use of a thermophoretic effect. The liquid particles employed for measurements have diameters ranging from a few tens of nanometers to a few microns. For these particle sizes, one can note a great disparity of the thermophoretic diffusion coefficients Kth evaluated with the various models available in the literature. The first part of this study focuses on an experimental determination of the thermophoretic diffusion coefficient, in the transition regime (values of the Knudsen number in the range 0,1 < Kn < 10), and for an average value of the gas/particle conductivity ratio close to 0,1. An original experimental device was used, which is based on an evolution of the classical penetration method. With this device, a robust determination of the thermophoretic diffusion coefficient Kth is obtained, and we have shown that the most relevant model appears to be the one proposed by Beresnev and Chernyak, while Talbot’s model led to an important overvaluation of the Kth coefficient, in the transition regime. The second part of the study relates to the analysis of the classical impinging jet configuration, which is used to study experimentally the coupling possibilities between the inertial drift and the thermophoretic migration. It is noted that for any particle-size range, a deposition improvement is obtained when increasing the hot jet/cold wall temperature difference. To identify the mechanisms which produce this intensification, a semi-analytical model was proposed. This model confirmed that the intensification observed for the fine particles is due to a thermophoretic migration. For larger particle sizes, we established that a coupling between the two drift mechanisms is operating, which produces a shift of the impactor
Rabiai, Fares. "Étude de la migration radiale de particules dans un écoulement : application à la séparation de fibres papetières et de charges minérales." Grenoble INPG, 1994. http://www.theses.fr/1994INPG0039.
Books on the topic "Écoulement chargé en particules":
Crowe, C. T. Multiphase flows with droplets and particles. 2nd ed. Boca Raton: CRC Press, 2011.
Conference papers on the topic "Écoulement chargé en particules":
Cadiergue, Sophie, Nathalie Michaux-Leblond, and Michel Bélorgey. "Analyse de la vitesse de chute des particules en écoulement turbulent (Application au transport sédimentaire)." In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 1996. http://dx.doi.org/10.5150/jngcgc.1996.028-c.
CHU, Tien Dat, Armelle JARNO-DRUAUX, Alexander EZERSKY, and François MARIN. "Trajectoires de particules et tri sédimentaire sous l'action d'un écoulement oscillant au dessus d'un fond ridé." In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2010. http://dx.doi.org/10.5150/jngcgc.2010.024-c.