Literatura científica selecionada sobre o tema "Modélisation du transport des solutés"
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Artigos de revistas sobre o assunto "Modélisation du transport des solutés"
Boucard, F., e A. Saboni. "Modélisation du transport des solutés neutres à travers des membranes de nanofiltration". Revue des sciences de l'eau 13, n.º 4 (12 de abril de 2005): 405–19. http://dx.doi.org/10.7202/705400ar.
Texto completo da fonteVauclin, M. "Modélisation du transport de solutés dans la zone non saturée du sol". Revue des sciences de l'eau 7, n.º 1 (12 de abril de 2005): 81–102. http://dx.doi.org/10.7202/705191ar.
Texto completo da fonteSardin, Michel. "Modélisation du transport transitoire de solutés en milieu poreux : les modèles linéaires. / Modeling the non-equilibrium transport of linearly interacting solutes in porous media". Sciences Géologiques. Bulletin 46, n.º 1 (1993): 197–216. http://dx.doi.org/10.3406/sgeol.1993.1905.
Texto completo da fonteMajdoub, R., J. Gallichand e J. Caron. "Modélisation du lessivage des bromures dans des cases lysimétriques par la méthode numérique des lignes". Revue des sciences de l'eau 14, n.º 4 (12 de abril de 2005): 465–88. http://dx.doi.org/10.7202/705428ar.
Texto completo da fonteDiaw, El Hadji Bamba, François Lehmann e Philippe Ackerer. "Modélisation du transport d'un soluté réactif en milieux poreux non saturés". Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science 333, n.º 2 (julho de 2001): 129–32. http://dx.doi.org/10.1016/s1251-8050(01)01607-x.
Texto completo da fonteGueraoui, Kamal, Abderrahim Mrabti, Abdellah Hammoumi e Gamal Zeggwagh. "Modélisation numérique bidimensionnelle des processus de transport de soluté dans un milieu poreux non saturé". Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics 328, n.º 6 (junho de 2000): 477–83. http://dx.doi.org/10.1016/s1620-7742(00)00036-2.
Texto completo da fonteFanget, B., O. Devos e E. Naffrechoux. "Rôle des acides humiques dans le transfert du pyrène entre les minéraux argileux et l'eau". Revue des sciences de l'eau 15 (12 de abril de 2005): 95–108. http://dx.doi.org/10.7202/705488ar.
Texto completo da fontePaugam, L., S. Taha, J. Cabon, N. Gondrexon e G. Dorange. "Nanofiltration de solutions de nitrate d'ammonium. Etude des paramètres influents". Revue des sciences de l'eau 14, n.º 4 (12 de abril de 2005): 511–23. http://dx.doi.org/10.7202/705430ar.
Texto completo da fonteWanko, Adrien, Gabriela Tapia-Padilla, Robert Mosé e Caroline Gregoire. "Modélisation du transport de soluté en milieux poreux par la méthode d’éléments finis mixtes hybrides – développement d’un limiteur de flux". Revue des sciences de l'eau 22, n.º 4 (22 de outubro de 2009): 507–22. http://dx.doi.org/10.7202/038328ar.
Texto completo da fontePoupaud, Frédéric. "Modélisation du transport des charges électriques dans les semiconducteurs". ESAIM: Proceedings 11 (2002): 141–52. http://dx.doi.org/10.1051/proc:2002035.
Texto completo da fonteTeses / dissertações sobre o assunto "Modélisation du transport des solutés"
Carrayrou, Jérôme. "Modélisation du transport de solutés réactifs en milieu poreux saturé". Université Louis Pasteur (Strasbourg) (1971-2008), 2001. https://publication-theses.unistra.fr/public/theses_doctorat/2001/Carrayrou_Jerome_2001.pdf.
Texto completo da fonteFahs, Marwan. "Modélisation du transport réactif multicomposants en milieu poreux saturé". Université Louis Pasteur (Strasbourg) (1971-2008), 2007. https://publication-theses.unistra.fr/public/theses_doctorat/2007/FAHS_Marwan_2007.pdf.
Texto completo da fonteThe modeling of reactive transport is done sequentially with the operator splitting approach or simultaneously with the global approach. The first work in reactive transport showed the superiority of (OS) compared to (GA). However, recent work highlighted the OS weakness in certain configurations. In the first part of this work we studied the tow approaches (OS) and (GA) for various configurations of chemistry-transport. In order to avoid the major disadvantage of (GA), who is the high cost in CPU time, we developed a new efficient and robust model. The obtained results show that, with this model, (GA) becomes more efficient and more precise than (OS). This advantage becomes more important in the case of complex chemistry with sorption and precipitation/dissolution reactions. The second part of this work is interested to the development of numerical schemes for modeling reactive transport. In fact, the majority of the existing models use Eulerian methods for the transport equations. These methods require a very fine space and time discretization and consequently a prohibitory CPU times. In order to solve this problem, we use in this work the Eulerian Lagrangian Localized Adjoint Method (ELLAM). The objective of this work is to develop the potentialities of ELLAM to solve the reactive transport problem. The first step of this part consists in combining the ELLAM with OS and GA. The obtained results show that for kinetic reactions, OS_ELLAM is more efficient than GA_ELLAM. However, for the equilibrium reactions, ELLAM_GA becomes preferable. The second step is the improvement of the ELLAM in order to avoid the numerical diffusion problem. A new formulation of ELLAM is developed. This formulation was tested for linear and nonlinear transport. The result shows that our new approach is less sensitive to the time step and avoids any numerical diffusion
Tran, Ngoc Tien Dung. "Transport de solutés dans un milieu à double-porosité non saturé. Modélisation par homogénéisation et applications". Phd thesis, Grenoble 1, 2008. http://www.theses.fr/2008GRE10097.
Texto completo da fonteThis Ph. D thesis presents the development of the solute transport models in unsaturated double-porosity medium, by using the asymptotic homogenization method. The obtained macroscopic models concern diffusion, diffusion-convection and dispersion-convection, according to the transport regime which is characterized by the non-dimensional numbers. The models consist of two coupled equations that show the local non-equilibrium of concentrations. The double-porosity transport models were numerically implemented using the code COMSOL Multiphysics (finite elements method), and compared with the solution of the same problem at the fine scale. The implementation allows solving the coupled equations in the macro- and micro-porosity domains (two-scale computations). The calculations of the dispersion tensor as a solution of the local boundary value problems, were also conducted. It was shown that the dispersivity depends on the saturation, the physical properties of the macro-porosity domain and the internal structure of the double-porosity medium. Finally, two series of experiments were performed on a physical model of double-porosity that is composed of a periodic assemblage of sintered clay spheres in Hostun sand HN38. The first experiment was a drainage experiment, which was conducted in order to validate the unsaturated flow model. The second series was a dispersion experiment in permanent unsaturated water flow condition (water content measured by gamma ray attenuation technique). A good agreement between the numerical simulations and the experimental observations allows the validation of the developed models
Tran, Ngoc Tien Dung. "Transport de solutés dans un milieu à double-porosité non saturé. Modélisation par homogénéisation et applications". Phd thesis, Université Joseph Fourier (Grenoble), 2008. http://tel.archives-ouvertes.fr/tel-00327123.
Texto completo da fonteFauré, Marie-Hélène. "Migration de particules et solutés en milieu poreux : modélisation du transport simultané de particules argileuses et de radionucléides sous l'effet d'un gradient de salinité". Vandoeuvre-les-Nancy, INPL, 1994. http://www.theses.fr/1994INPL046N.
Texto completo da fonteOrgogozo, Laurent. "Transport de soluté biologiquement actif en milieu poreux incluant une phase biofilm : de la modélisation numérique aux perspectives expérimentales". Thesis, Vandoeuvre-les-Nancy, INPL, 2009. http://www.theses.fr/2009INPL091N/document.
Texto completo da fonteModeling transport in porous media of organic chemical solute in presence of a bacterial population growing as biofilms is an important area of research for environmental applications, for example for remediation of groundwater contaminated by organic pollutants (biosparging, bio-barriers …). Biofilms, which are composed of bacteria and extracellular organic substances, grow on the pore walls of the porous medium. Bacteria degrade the organic solute by their metabolism and thus may contribute to pollution decrease. Bio-reactive transport of an organic solute in a porous medium including a biofilm phase is a strongly multi-scale (from the bacteria scale to the heterogeneity scale of the aquifer) and coupled (involving hydrodynamic, physicochemical and biochemical phenomena) process. The organic solute is transported by convection and diffusion in the fluid phase and diffuses into the biofilm phase, where it is degraded by bacterial metabolism. The goal of this work is to develop macroscopic models of bio-reactive transport at the Darcy-scale through volume averaging based on the data available at pore-scale. In the general case, the macroscopic system obtained by averaging pore-scale equations is a two coupled equations system (one equation for each phase), called two-equation model. By considering the relation between averaged concentration in the fluid phase and averaged concentration in the biofilm phase, several regimes of transport can be found which allow simplifying this system into a one equation system. The local mass equilibrium assumption leads to such a simplified model. When an equilibrium relationship between phases cannot be considered, a one equation model may though be developed if the biodegration rate is limited by external mass transfer or by the kinetics of bacterial metabolism. The use of these models implies the numerical solving of closure problems, in order to set up the values of the macroscopic transport parameters (dispersion tensor, interfacial flux …). Computations of these effective coefficients have been performed in different situations of mass transport in porous medium in order to study their behaviour. The results of these models have then been compared with direct simulations performed on a simplified geometry representative of a two-dimensional porous medium including a biofilm phase. Based on these comparisons, the validity domain of this model has been identified in terms of hydrodynamic and biochemical conditions of transport (i.e. the Péclet number and the Damköhler number). The set up of an experimental model of transport in a porous media including a biofilm phase has also been started, in order to make experimental validations of the previously developed numerical models and to build up an additional tool to study the considered phenomena
Chatelain, Marc. "Modélisation des phénomènes de transport solutal et étude d’un dispositif de brassage pour la purification du silicium photovoltaïque". Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI105/document.
Texto completo da fonteThe present study focuses on solute segregation during photovoltaic silicon directional solidification. This multi-physics problem involves various spatial and temporal scales. The numerical simulation of this process requires efficient models, especially for 3D industrial configurations. In the first part of the study, solute wall functions are derived from a scaling analysis in order to estimate the segregations without numerical resolution of the solute boundary layer. The method is based on the coupling of an hydrodynamic simulation of convection in the liquid phase and an analytical segregation computation. The developed analytical model provides an estimation of the convecto-diffusive parameter from the wall shear-stress at the solid/liquid interface. A reference case in 2D with imposed solidification rate is used for validation purposes. The developed model provides a meaningful estimation of concentration fields in the ingots. In a second part, we focus on segregation optimization by a mechanical stirrer. Transient stirring simulations, using a sliding mesh technique, are achieved with FLUENT commercial software. Results are compared to PIV velocity field measurements performed on an experimental setup using water. A segregation computation in a quasi-steady regime is then implemented in the stirring simulation. The effect of the stirring parameters are directly observed on the solute boundary layer at the solid/liquid interface. In a third part, a transient solidification simulation, including furnace thermal conditions, is performed in a 3D configuration with forced convection. The flow generated by the impeller is described thanks to an empirical model based on body forces. A first attempt is finally made to retrieve segregations in the ingot with the developed analytical method
Joodi, Ali Salim. "Apport de l'équation de Brinkman à la modélisation de l'écoulement d'eau et du transport de soluté dans l'aquifère karstique : application au système karstique du Val d'Orléans". Thesis, Orléans, 2009. http://www.theses.fr/2009ORLE2021/document.
Texto completo da fonteThe karst aquifers are characterized by a fast flow in the karstic conduits and a slow flow in the matrix. Because of this fast flow, these aquifers are strongly vulnerable to pollution. The main aim of this thesis is to evaluate the importance of water exchanges at the interface between the conduits and the matrix and by consequence the impact of these exchanges on the solute transport in the karst system. To investigate the contribution of the Brinkman equation to the evaluation of the water flows, a model whose geometry of the conduit is described by the sine function was established. Two scenarii are applied. Scenario A employs Darcy’s law in the conduit and the matrix. The scenario B employs the Brinkman equation and Darcy’s law in the conduit and the matrix, respectively. The additional term of the Brinkman equation describing the shear stress plays a predominant role on the water exchange between the conduit and the matrix when the conduits are sinuous. The hydrodynamic - transport model was applied to the karst system of the Val d’Orléans. The calibration showed that the best average diameter of the conduit is of 5 m, the permeability in the hosted rock is of 5.7×10-10 m2 and that of the conduit of 1.65×10-5 m2 to 5.5×10-5 m2. The results of the hydrodynamic - transport model were compared to floods of the Loire observed in the years 1992 and 1993 during which the chloride concentrations (tracer conservative naturalness) were proportioned in the Loire and Bouillon Spring. With a storage coefficient in the matrix 0.9 m-1, the distance penetrated by the water in the matrix is approximately 530 m in two months for a rising of 2 meters (example of 1993)
Dawood, Ihssan. "Modélisation du transfert de métaux lourds dans les sols non saturés (modèle fractionnaire hydrogéochimique)". Phd thesis, Université des Sciences et Technologie de Lille - Lille I, 2007. http://tel.archives-ouvertes.fr/tel-00422621.
Texto completo da fonteTevissen, Etienne. "Méthodologie d'étude et modélisation du transport de solutes en milieux poreux naturels : application à la migration du chrome dans la nappe alluviale du Drac (Isère)". Vandoeuvre-les-Nancy, INPL, 1993. http://www.theses.fr/1993INPL089N.
Texto completo da fonteLivros sobre o assunto "Modélisation du transport des solutés"
Mathis, Philippe. Graphes et réseaux: Modélisation multiniveau. Paris: Hermès science publications, 2003.
Encontre o texto completo da fonteKomarov, Kostyantyn. Une modélisation de l'arbitrage entre voiture particulière et transport collectif: Application à la ville de Kharkov (Ukraine). Grenoble: A.N.R.T, Université Pierre Mendes France (Grenoble II), 2001.
Encontre o texto completo da fonteSanchez-Flores, Oscar Luis. Planification et impact des infrastructures de transport routier: Théorie et applications selon une approche de modélisation discrétisée. Grenoble: A.N.R.T, Université Pierre Mendes France (Grenoble II), 2000.
Encontre o texto completo da fonteBouyaux, Pascal. Modélisation béhavioriste de la demande de transport urbain: Problèmes théoriques et application empirique à la ville de Rennes. Grenoble: A.N.R.T, Université Pierre Mendes France (Grenoble II), 1988.
Encontre o texto completo da fonteBaptiste, Hervé. Interaction entre le système de transport et les systèmes de villes: Perspective historique pour une modélisation dynamique spatialisée. Lille: A.N.R.T., Université de Lille III, 2000.
Encontre o texto completo da fonteMutch, J. P. Devenir de l'aldicarbe et modélisation de son transport dans le sol et les eaux souterraines de l'Ile-du-Prince-Édouard. Burlington, Ont: Direction générale des eaux intérieures, 1992.
Encontre o texto completo da fonteFeurra, Frank. Le financement des infrastructures de transport: Problématique de gestion appliquée au système ferroviaire en général et la SNCF en particulier : analyse et modélisation financière. Grenoble: A.N.R.T, Université Pierre Mendes France (Grenoble II), 1997.
Encontre o texto completo da fonteAnalyse et modélisation spatiales à long terme du transport national de marchandises. Grenoble: A.N.R.T, Université Pierre Mendes France (Grenoble II), 2001.
Encontre o texto completo da fonteOuajji, Hassan. Etude de propriétés de transport d'un plasma de mélange air-cuivre modélisation de la colonne d'arc. 1986.
Encontre o texto completo da fonteTours, Université de, ed. Offre de transport et aménagement du territoire: Évaluation spatio-temporelle des projets de modification de l'offre par modélisation multi-échelles des systèmes de transport. 1997.
Encontre o texto completo da fonteCapítulos de livros sobre o assunto "Modélisation du transport des solutés"
MENUT, Laurent. "La modélisation de chimie-transport". In Modélisation de la pollution atmosphérique régionale, 125–53. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9102.ch6.
Texto completo da fonteMENUT, Laurent. "Les dépôts". In Modélisation de la pollution atmosphérique régionale, 113–23. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9102.ch5.
Texto completo da fonteMENUT, Laurent. "Les émissions". In Modélisation de la pollution atmosphérique régionale, 69–112. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9102.ch4.
Texto completo da fonteLUISIER, Mathieu, Cedric KLINKERT, Sara FIORE, Jonathan BACKMAN, Youseung LEE, Christian STIEGER e Áron SZABÓ. "Transistors à effet de champ basés sur des matériaux 2D : perspective de modélisation". In Au-delà du CMOS, 37–81. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9127.ch2.
Texto completo da fonteTrabalhos de conferências sobre o assunto "Modélisation du transport des solutés"
Villaret, Catherine. "Modélisation du transport littoral". In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2004. http://dx.doi.org/10.5150/jngcgc.2004.028-v.
Texto completo da fonteVillaret, Catherine, Charles Teisson, Olivier Simonin e Cosette Boeuf. "Modélisation diphasique du transport de sédiments cohésifs". In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 1996. http://dx.doi.org/10.5150/jngcgc.1996.032-v.
Texto completo da fonteDarras, M., P. Sauvage, P. Pechon e KD Nguyen. "Modélisation du transport solide longitudinal : les difficultés de la modélisation du tenseur de radiation". In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 1990. http://dx.doi.org/10.5150/jngcgc.1990.021-d.
Texto completo da fonteCamenen, Benoît, Rodrigo Pedreros, Hélène Dupuis, Hélène Howa e Philippe Larroudé. "Modélisation numérique du transport sédimentaire sur une plage sableuse". In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2000. http://dx.doi.org/10.5150/jngcgc.2000.020-c.
Texto completo da fonteADONG, Feddy, Anne-Claire BENNIS e Dominique MOUAZE. "Modélisation du transport particulaire pour les énergies marines renouvelables". In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2016. http://dx.doi.org/10.5150/jngcgc.2016.014.
Texto completo da fonteWaeles, Benoît, e Pierre Le Hir. "Modélisation du transport de sédiments mixtes (vase et sable fin)". In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2004. http://dx.doi.org/10.5150/jngcgc.2004.027-w.
Texto completo da fonteREVIL-BAUDARD, Thibaud, e Julien CHAUCHAT. "Modélisation diphasique du transport sédimentaire en régime de Sheet Flow". In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2012. http://dx.doi.org/10.5150/jngcgc.2012.041-r.
Texto completo da fonteMussat, L., e D. Sabatier. "Modélisation et preuve de sécurité des systèmes du transport ferroviaire". In Congrès Lambda Mu 19 de Maîtrise des Risques et Sûreté de Fonctionnement, Dijon, 21-23 Octobre 2014. IMdR, 2015. http://dx.doi.org/10.4267/2042/56145.
Texto completo da fontePechon, P., e C. Teisson. "Modélisation numérique du courant et du transport sédimentaire induits par le déferlement". In Journées Nationales Génie Côtier - Génie Civil. Presses Universitaires de Perpignan, 1994. http://dx.doi.org/10.5150/jngcgc.1994.001-p.
Texto completo da fonteGuerber, Etienne, Gonéri le Cozannet e Rodrigo Pedreros. "Modélisation statistique du vent. Influence du changement climatique sur le transport éolien". In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2008. http://dx.doi.org/10.5150/jngcgc.2008.045-g.
Texto completo da fonte