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Academic literature on the topic 'Solides en vrac – Écoulement'
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Journal articles on the topic "Solides en vrac – Écoulement"
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.
Full textAuradou, 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.
Full textSALEH, Khashayar, and Mikel LETURIA. "Stockage et écoulement des solides granulaires dans les silos - Ingénierie et accidentologie." Opérations unitaires. Génie de la réaction chimique, January 2020. http://dx.doi.org/10.51257/a-v1-j2259.
Full textSALEH, Khashayar, and Mikel LETURIA. "Stockage et écoulement des solides granulaires dans les silos - Concepts de base et théorie." Opérations unitaires. Génie de la réaction chimique, January 2020. http://dx.doi.org/10.51257/a-v1-j2258.
Full textDissertations / Theses on the topic "Solides en vrac – Écoulement"
Michon, Guy-Jean. "Etude expérimentale du comportement aérodynamique de systèmes d'alimentation gaz-solide en transport pneumatique." Poitiers CEAT, 1994. http://www.theses.fr/1994POIT2259.
Full textGinestet, Alain. "Contribution à l'étude des régimes d'écoulement en transport pneumatique vertical et incliné." Compiègne, 1992. http://www.theses.fr/1992COMPD499.
Full textBenmansour, Leïla. "Écoulement gravitaire dans un silo parallélépipédique." Compiègne, 1996. http://www.theses.fr/1996COMPD941.
Full textMelinge, Yannick. "Etude de l'écoulement intermittent gaz-solide au voisinage de changements de direction à rayon de courbure constant." Poitiers, 1998. http://www.theses.fr/1998POIT2275.
Full textWeisse, Denis. "Modélisation de l'écoulement gravitaire d'un matériau granulaire." Vandoeuvre-les-Nancy, INPL, 1991. http://docnum.univ-lorraine.fr/public/INPL_T_1991_WEISSE_D.pdf.
Full textMotte, Jérôme. "Étude du comportement hydrodynamique de mélanges multi-solides dans un lit fluidisé circulant." Compiègne, 1996. http://www.theses.fr/1996COMPD947.
Full textLominé, Franck. "Écoulements de particules dans un milieu poreux." Rennes 1, 2007. https://tel.archives-ouvertes.fr/tel-00198209.
Full textThis work deals with experimental and numerical investigations on particles flow through a packing of larger spheres. We built an experimental device to study lateral dispersion and the mean transit time of a blob of particles through a porous medium. Particularly, we determined the dependence of the mean transit time on the number of particles, on particle size and on the height of the porous medium. We also characterized the dependence of the lateral dispersion coefficient on the number of particles moving in the porous structure. Then, we developed numerical simulation models based on « Event-Driven » and « molecular dynamic of soft spheres » methods. Those allowed us to supplement the experimental study by analyzing the influence of various additional parameters. The access inside the porous medium allowed a finer analysis of particles dispersion. Finally, we approached the possibility of using the spontaneous percolation phenomenon to produce a mixer. Thanks to the numerical tool, we carried out and characterized mixtures of particles of different sizes. We showed that this process proves to be a simple and effective method to obtain homogeneous mixtures of particles
Azzi, Merched. "Étude des profils de flux de particules dans l'écoulement vertical établi d'une suspension gaz-solide." Compiègne, 1986. http://www.theses.fr/1986COMPD031.
Full textGuigon, Pierre. "Hydrodynamique d'un lit ruisselant de particules et transfert thermique associé : application au dimensionnement d'un échangeur industriel." Compiègne, 1987. http://www.theses.fr/1987COMPE067.
Full textThe hydrodynamic and thermal characteristics of solids raining through a tubular heat exchanger with or without the presence of a counter current flow of gas had been studied. A physical model was developed to predict the performance of raining bed heat exchangers. An example for designing a solids cooler was given to illustrate the calcu1ating procedures. The particles trajectories in the heat exchanger could be computed with the knowledge of three parameters : namely, the solids-solids friction coefficient, the solids-wall friction coefficient and the tangential coefficient of restitution on the tube. Various experimental set-ups had been designed to obtain these parameters. An inclined chute of short length was constructed to study the heat transfer coefficient between the flowing solids and the wall. The coefficient appeared to depend mainly on the solids concentration at the wall, which is a function of average velocity and mass flow rate of solids. On the heat exchanger tube surface, two different zones were observed. The raining particles exchange heat directly with the upper surface of the tube. Additional heat is exchange through gas convection and radiation on the remaining tube surface. Heat transfer coefficients were obtained for various types of solids under different operating conditions – Criteria for optimum design were proposed
Gaudel, Naïma. "Rhéologie et contrôle des écoulements de dispersions granulaires par l'application de vibrations." Electronic Thesis or Diss., Université de Lorraine, 2018. http://www.theses.fr/2018LORR0154.
Full textThis work is funded by the European Founds Interreg VA ("PowderReg" project). The optimization of the transport, storage and mixture of granular dispersions involves their flow control, by adding mechanical vibrations, for example. The present work enables a better understanding of the influence of the vibrations on the apparent rheology of model granular dispersions in the quasi-static regime. Experimental and numerical studies were carried out in order to probe the modifications of the local dynamic and heterogeneities that appear during the flow. Two geometries, interesting for diverse applications in fundamental science, geophysics and industries, were studied: the Couette cell geometry and the inclined plane. In the first step, refractive-index matching technique, coupled to the planar laser induced fluorescence was used to make measurements in granular suspensions in a vibrated Couette cell geometry. Vibrations make the rheology local by homogenizing the system. They suppress the yield stress and result in the appearance of a Newtonian plateau at the low shear, intrinsic to the local dynamic, which is diffusive in nature. It appears that the rearrangement time of the particles, depending on the intensity of the vibrations, is linked to a free volume available around each particle. The numerical study of this geometry in the case of a dry granular dispersion shows similar results. In the second step, flows of dry granular dispersions down the inclined and vibrated plane were realized. This study was completed with a numerical work. The results demonstrated the existence of two distinct regimes under vibrations. The behavior in the gravity-driven regime is not affected by the vibrations and a Bagnold profile is observed. The vibrations mainly cause the decrease of the basal friction and thus influence the height of the deposits. In the vibration-driven regime, however, flows are triggered by the vibrations themselves. It appears that they induce velocity fluctuations that create a granular temperature. That temperature allows the activation of the reorganizations at the grain scale. This suppresses the apparent yield responsible for the flow jamming, and thus enables their control through the shear rate
Books on the topic "Solides en vrac – Écoulement"
1939-, Yang Wen-ching, ed. Fluidization, solids handling, and processing: Industrial applications. Westwood, NJ: Noyes Publications, 1998.
Find full textEdinburgh, Royal Society of, and International Conference on Structures and Granular Solids: From Scientific Principles to Engineering Applications (2008 : Edinburgh, Scotland), eds. Structures and granular solids: From scientific principles to engineering application : an international conference in celebration of the 60th birthday of Prof. J. Michael Rotter. London: Taylor & Francis, 2008.
Find full text1945-, Drew Donald A., Joseph Daniel D, and Passman Stephen L, eds. Particulate flows: Processing and rheology. New York: Springer, 1998.
Find full textYang, Wen-Ching. Fluidization, Solids Handling, and Processing: Industrial Applications. Noyes Pubns, 1999.
Find full textYang, Wen-Ching. Fluidization, Solids Handling, and Processing: Industrial Applications. Elsevier Science & Technology Books, 1998.
Find full textYang, Wen-Ching. Fluidization, Solids Handling, and Processing: Industrial Applications. Noyes Pubns, 1999.
Find full textDrew, Donald A., Daniel D. Joseph, and Stephen L. Passman. Particulate Flows: Processing and Rheology. Springer, 2012.
Find full textDrew, Donald A., Daniel D. Joseph, and Stephen L. Passman. Particulate Flows: Processing and Rheology. Springer, 2012.
Find full text(Editor), Donald A. Drew, Daniel D. Joseph (Editor), and Stephen L. Passman (Editor), eds. Particulate Flows: Processing and Rheology (The IMA Volumes in Mathematics and its Applications). Springer, 1997.
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