Academic literature on the topic 'Simulation par différences finies'
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Journal articles on the topic "Simulation par différences finies"
Cazelles, B., and D. Fontvieille. "Modélisation d'un écosystème lotique pollué par une charge organique : prise en compte de l'hydrodynamique et des mécanismes de transport." Revue des sciences de l'eau 2, no. 2 (April 12, 2005): 183–209. http://dx.doi.org/10.7202/705028ar.
Full textMnasri, Aida, and Ezzeddine Hadj Taieb. "Simulation numérique par éléments finis des écoulements transitoires à surface libre." La Houille Blanche, no. 5-6 (December 2019): 81–92. http://dx.doi.org/10.1051/lhb/2019032.
Full textDi Menza, Laurent, and Rysvan Maleck-Rassoul. "Résolution numérique par différences finies d'un système couplé issu de la dynamique des plasmas." Comptes Rendus de l'Académie des Sciences - Series I - Mathematics 326, no. 1 (January 1998): 111–16. http://dx.doi.org/10.1016/s0764-4442(97)82722-x.
Full textReineix, Alain, FranÇois Torres, Bernard Jecko, and Philippe Dumas. "Méthode mixte: différences finies, équations intégrates appliquées à la simulation de dispositifs expérimentaux." Annales Des Télécommunications 48, no. 1-2 (January 1993): 47–55. http://dx.doi.org/10.1007/bf03005231.
Full textReineix, Alain, and Bernard Jecko. "Analyse par différences finies de la diffraction d’ondes électromagnétiques transitoires: application à l’étude des microantennes." Annales Des Télécommunications 45, no. 1-2 (January 1990): 40–46. http://dx.doi.org/10.1007/bf02999562.
Full textQuoc On, Hoang, and Tran Gia Lich. "Ecoulement en rivière après une rupture de barrage. Calcul par la méthode des différences finies associées avec des caractéristiques." La Houille Blanche, no. 6 (October 1990): 433–40. http://dx.doi.org/10.1051/lhb/1990035.
Full textLestriez, Philippe, Khémais Saanouni, and Abel Cherouat. "Simulation numérique de la coupe orthogonale par couplage thermique-comportement-endommagement en transformations finies." Mécanique & Industries 6, no. 3 (May 2005): 297–307. http://dx.doi.org/10.1051/meca:2005033.
Full textBertrand, Valérie, Michèle Lalande, Noël Feix, and Bernard Jecko. "Etude statique de structures planaires complexes: application à la modélisation de l’excitation de lignes analysées par l’algorithme des différences finies transitoires." Annales Des Télécommunications 49, no. 11-12 (November 1994): 649–58. http://dx.doi.org/10.1007/bf03001319.
Full textIgouzal, M., and A. Maslouhi. "Contribution à la gestion de la retenue d'un barrage réservoir sur la rivièreSebou (Maroc) à l'aide d'un modèle hydraulique." Revue des sciences de l'eau 16, no. 4 (April 12, 2005): 443–58. http://dx.doi.org/10.7202/705517ar.
Full textBouheniche, Salaheddine, and Bénina Touaibia. "Modélisation numérique du transport solide du système « barrage - cours d’eau, transport - déposition » : cas du barrage de Sidi Mohamed Ben Aouda (SMBA) sur l’oued Mina, en zone semi-aride." Revue des sciences de l’eau 26, no. 1 (March 18, 2013): 21–31. http://dx.doi.org/10.7202/1014916ar.
Full textDissertations / Theses on the topic "Simulation par différences finies"
Griffay, Gérard. "Modélisation thermique globale du procédé de cokéfaction. Résolution numérique par différences finies implicites bidimensionnelles." Aix-Marseille 1, 1988. http://www.theses.fr/1988AIX11145.
Full textSesetyan, Karin. "Charactérisation du spectre de réponse en champ proche d'une faille par simulation des mouvements forts du sol." Paris 11, 2007. http://www.theses.fr/2007PA112320.
Full textSchamper, Cyril. "Etude par simulation du suivi d'un réservoir en production par méthodes ElectroMagnétiques." Paris 6, 2009. http://www.theses.fr/2009PA066608.
Full textLow frequency electromagnetic methods from a controlled source (CSEM : Controlled Cource ElectroMagnetic) have been applied for a little more than a decade in oil exploration. As a complement to seismic methods, they permit lowering of the risk of «dry holes», since they are more sensitive to the nature of the uid contained in rock. Because of the numerous successes encountered, and experience acquired, petroleum companies foresee extending application of CSEM to the monitoring of reservoirs under production. The principal problems are monitoring the oil-water interface to avoid loss of production due to invasion by water, and to estimate the e_ciency of improved techniques on the recovery rate for production (EOR : Enhanced Oil Recovery). The interface of oil and water is subject to an essentially lateral displacement due of low thickness of hydrocarbon reservoirs having an area that exceeds several square kilometres. The work of this thesis, done in partnership between UPMC and CGG Veritas, consists of the theoretical feasibility of monitoring CSEM for the lateral displacement of oil-water interface with a n apparatus that permits obtaining information on the distribution of uids for a large surface reservoir. We are particularly interested in the land milieu. After an examination of the status of applied geophysical methods on the monitoring for hydrocarbon reservoirs, a presentation of the theory of simulation algorithms is made. For this thesis, two codes have been developed, parallelized and used on parallel machines for which the calculation grid is European, EGEE. The _rst uses the semi-analytic Method of Moments for the frequency domain, and by extension, for the time domain. The second is based on _nite di_erence for the time domain. The development is more concentrated on the Method of Moments (code : EM MOM). The EM MOM code was able to be tested during a cooperative mission with CIPR (Center for Integrated Petroleum Research) at the University of Bergen, Norway. The code permitted doing a sensitivity analysis in the frequency domain to identify device geometries better adapted to the monitoring of a hydrocarbon reservoir (depth of 1000 meters). The apparatus that yields the greatest sensitivity consists of a vertical dipole source buried at mid depth between the top of the reservoir and the ground surface, and of horizontal receptors for electrical _eld set on the ground surface. The level of 4D signal, i. E. , the di_erence of measured _eld at two di_erent instants («time lapse») remains at a level slightly over the ambient noise, which can largely be eliminated by summation (vertical stacking). A series of measures of ambient noise done by CGGVeritas, presented in the _rst part of this thesis, establishes this observation. A 4D inversion algorithm has demonstrated the possibility of interpreting the synthetic CSEM data by using a single position of source, and an array of receivers positioned on the surface. The images drawn from the inversion trials show the oil-water interface very well. The neglect of a narrow layer of a dozen meters having a strong contrast in conductivity with the terrain environment, is practically annulled for the signal measured at the surface, but reduces the resolution of the oil-water boundary in 4D inversion. A high level of knowledge of the distribution of electrical conductivity for the entire terrain environment is therefore necessary for the inversion of 4D CSEM data. Iv
Cremoux, Guillaume de. "Caractérisation et optimisation de technologies BICMOS par simulations bidimensionnelles de dispositifs complexes." Lille 1, 1998. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/1998/50376-1998-385.pdf.
Full textSmaoui, Hassan. "Modélisation numérique tridimensionnelle de l'hydrodynamique et des transports sédimentaires en Manche orientale et dans le sud de la Mer du Nord." Lille 1, 1996. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/1996/50376-1996-428.pdf.
Full textLardin, Patrick. "Le diagramme Voronoï généralisé comme support à la simulation des écoulements d'eau souterraine par différences finies intégrées." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0017/MQ49033.pdf.
Full textFousse, Allan. "Modélisation à base topologique de couches géologiques : application à la simulation de propagation d'ondes par des différences finies." Poitiers, 2000. http://www.theses.fr/2000POIT2261.
Full textAndriamanampisoa, Lala Bakonirina. "Simulation de la diffraction par des réseaux lamellaires 1D par la méthode modale en différences finies et la méthode des moments en coordonnées paramétriques." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2010. http://tel.archives-ouvertes.fr/tel-00653380.
Full textEl, Hachemi Mohamed. "Analyse de discontinuités de transitions hyperfréquences par une méthode de différences fines temps-fréquences." Metz, 1998. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1998/El_Hachemi.Mohamed.SMZ9855.pdf.
Full textThe simulation, of phenomena related to the electromagnetic propagation, by the finites differences time domain method allows to exhibit clearly the properties of the studied system. This method, initially proposed by Yee, in order to study the problems of electromagnetic diffusion and further used for analyzing emission, is extended in this thesis to the study of the discontinuity by introducing original boundary conditions. For the sake of consistency, this memory is organized in three parts. The first part is consecrated to the theoretical recalls on the guided propagation and to the associated discontinuity problems. The second part is related to the radiation of the half wavelength sheathed dipole; in the presence of dielectrics discontinuity within the insulating layer, the analytical rigorous resolution of such problems become very heavy. The third part related to the implementation of the DFDT method, it is validated by the expression of the simple half wavelength dipole radiation, extended results related to the effect of the near field enhancement by the dielectrics windows are given. Finally sorne phenomenons due to the excitation of the rectangular mode of a guide by a coaxial excitation are computed; finaly a numerical survey of the optimal correction by an iris is led to term
Capuano, Marion. "Simulations numériques d'écoulements diphasiques compressibles, visqueux et conductifs à l'aide de schémas aux différences finies d'ordre élevé." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEC016/document.
Full textThis PhD work concerns the simulation of compressible, viscous and conductive two-phase flows, using high-order centered finite-difference schemes. The equations governing two-phase flows are the Navier-Stokes equations in conjunction with two advection equations governing the interface and one equation allowing to estimate the temperature within a liquid and a gas. These are solved using conservative numerical methods which are validated from the resolution of various 1D test cases taken from the literature. The results obtained are in good agreement with the analytical or reference solutions. Then, two 2-D flows composed of two gases are considered. The first case concerns the Richtmyer-Meshkov instability developping at the interface between air and SF6. The second case deals with a cylindrical bubble filled with helium or R22 which is hit by a plane shock wave travelling through air. For these two flows, a grid convergence study is conducted and the numerical solutions compare well with the experimental data of the literature. The effect of the Reynolds number on the deformation of the bubble interface is also shown. Finally, the collpase of an air bubble in water is studied. Firstly, the spherical collapse of the bubble due to its interaction with a spherical converging shock wave is simulated. The results are in good agreement with the solutions predicted by the Rayleigh-Plesset model. The effect of the initial interface thickness and the thermal conductivity on the collapse is investigated. Secondly, the non-spherical collapse of a bubble near a wall impacted by a plane shock wave is considered. The pressure imposed on the wall and the temperature within the flow are quantified. Finally, the influence of the initial stand-off distance between the wall and the bubble is examined
Books on the topic "Simulation par différences finies"
Yu, Wenhua. Advanced FDTD methods: Parallelization, acceleration, and engineering applications. Boston: Artech House, 2011.
Find full textBook chapters on the topic "Simulation par différences finies"
NAZAROV, Anatoly, János SZTRIK, and Anna KVACH. "Résultats récents en files d’attente avec rappels à sources finies avec collisions." In Théorie des files d’attente 1, 247–97. ISTE Group, 2021. http://dx.doi.org/10.51926/iste.9001.ch8.
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