Literatura científica selecionada sobre o tema "Conditions aux limites de Ventcel"
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Artigos de revistas sobre o assunto "Conditions aux limites de Ventcel"
Despréaux, Stéphane, e Patrick Witomski. "Problème de capillarité avec conditions aux limites mixtes". Comptes Rendus de l'Académie des Sciences - Series I - Mathematics 329, n.º 4 (agosto de 1999): 343–46. http://dx.doi.org/10.1016/s0764-4442(00)88579-1.
Texto completo da fonteKourta, Azeddine, e Renaud Sauvage. "Conditions aux limites absorbantes sur des frontières libres". Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics 329, n.º 12 (dezembro de 2001): 857–64. http://dx.doi.org/10.1016/s1620-7742(01)01411-8.
Texto completo da fonteFivel, M. C., e G. Canova. "Simulations 3D de dislocations en conditions aux limites complexes". Le Journal de Physique IV 08, PR4 (junho de 1998): Pr4–249—Pr4–258. http://dx.doi.org/10.1051/jp4:1998431.
Texto completo da fonteAmmari, Habib, e Chiraz Latiri-Grouz. "Conditions aux limites approchées pour les couches minces périodiques". ESAIM: Mathematical Modelling and Numerical Analysis 33, n.º 4 (julho de 1999): 673–92. http://dx.doi.org/10.1051/m2an:1999157.
Texto completo da fonteBoulanouar, Mohamed. "Le transport neutronique avec des conditions aux limites générales". Comptes Rendus de l'Académie des Sciences - Series I - Mathematics 329, n.º 2 (julho de 1999): 121–24. http://dx.doi.org/10.1016/s0764-4442(99)80474-1.
Texto completo da fonteRahmani, Leila. "Conditions aux limites approchées pour une plaque mince non linéaire". Comptes Rendus Mathematique 343, n.º 1 (julho de 2006): 57–62. http://dx.doi.org/10.1016/j.crma.2006.04.013.
Texto completo da fonteBoulanouar, Mohamed. "Le transport neutronique avec des conditions aux limites générales (II)". Comptes Rendus Mathematique 350, n.º 5-6 (março de 2012): 329–32. http://dx.doi.org/10.1016/j.crma.2012.02.007.
Texto completo da fonteLipietz, Alain. "Les conditions aux limites des politiques d'industrialisation dans le Tiers Monde". Tiers-Monde 29, n.º 115 (1988): 1021–28. http://dx.doi.org/10.3406/tiers.1988.3735.
Texto completo da fonteBostan, Mihai, e Frédéric Poupaud. "Solutions périodiques du système de Vlasov-Poisson avec conditions aux limites". Comptes Rendus de l'Académie des Sciences - Series I - Mathematics 325, n.º 12 (dezembro de 1997): 1333–36. http://dx.doi.org/10.1016/s0764-4442(97)82365-8.
Texto completo da fonteDegiovanni, A., e J. C. Batsale. "A propos des conditions aux limites de 4ème et 5ème espèces". International Journal of Heat and Mass Transfer 37, n.º 5 (março de 1994): 877–81. http://dx.doi.org/10.1016/0017-9310(94)90123-6.
Texto completo da fonteTeses / dissertações sobre o assunto "Conditions aux limites de Ventcel"
Auvray, Alexis. "Contributions à l'amélioration de la performance des conditions aux limites approchées pour des problèmes de couche mince en domaines non réguliers". Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEC018/document.
Texto completo da fonteTransmission problems with thin layer are delicate to approximate numerically, because of the necessity to build meshes on the scale of the thin layer. It is common to avoid these difficulties by using problems with approximate boundary conditions — also called impedance conditions. Whereas the approximation of transmission problems by impedance problems turns out to be successful in the case of smooth domains, the situation is less satisfactory in the presence of corners and edges. The goal of this thesis is to propose new impedance conditions, more efficient, to correct this lack of performance. For that purpose, the asymptotic expansions of the various models -problems are built and studied to locate exactly the origin of the loss, in connection with the singular profiles associated to corners and edges. New impedance conditions are built, of multi-scale Robin or Venctel types. At first studied in dimension 2, they are then generalized in certain situations in dimension 3. Simulations have been carried out to confirm the efficiency of the theoretical methods to some
Ghantous, Joyce. "Prise en compte de conditions aux bords d'ordre élevé et analyse numérique de problèmes de diffusion sur maillages courbes à l'aide d'éléments finis d'ordre élevé". Electronic Thesis or Diss., Pau, 2024. http://www.theses.fr/2024PAUU3024.
Texto completo da fonteThis thesis focuses on the numerical analysis of partial differential equations involving high-order boundary conditions of the Ventcel type using the finite element method. To define the Laplace-Beltrami operator involved in the boundary condition, the domain is assumed to be smooth: thus, the meshed domain does not correspond to the initial physical domain, resulting in a geometric error. We then use curved meshes to reduce this error and define a lift operator that allows comparing the exact solution defined on the initial domain with the approximate solution defined on the discretized domain. We obtain a priori error estimates, expressed in terms of finite element approximation error and geometric error. We study problems with source terms and spectral problems, as well as scalar equations and vector equations of linear elasticity. Numerical experiments in 2D and 3D validate and complement these theoretical results, particularly highlighting the optimality of the obtained errors. These simulations also identify a super-convergence of the errors on quadratic meshes
Lemrabet, Keddour. "Justification des modèles de problèmes aux limites de Ventcel en élasticité linéaire". Nice, 1987. http://www.theses.fr/1987NICE4111.
Texto completo da fonteLemrabet, Keddour. "Justification des modèles de problèmes aux limites de Ventcel en élasticité linéaire". Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37607318z.
Texto completo da fonteSaikali, Elie. "Numerical modelling of an air-helium buoyant jet in a two vented enclosure". Thesis, Sorbonne université, 2018. http://www.theses.fr/2018SORUS023/document.
Texto completo da fonteWe present numerical results from large eddy simulations (LES) and coarse direct numerical simulations (DNS) of an air-helium buoyant jet rising in a two vented cavity. The geometrical configuration mimics the helium release experimental set-up studied at CEA Saclay in the framework of security assessment of hydrogen-based systems with an indoor usage. The dimension of the enclosure was chosen to ensure a laminar-turbulent transition occurring at about the middle height of the cavity. This study focuses mainly on three key points : the influence of the boundary conditions on the jet development and its interaction with the exterior environment, the validity of the numerical model which is analyzed by comparing the numerical velocity distribution versus the measured particle image velocimetry (PIV) ones, and finally understanding the distribution of air-helium and the stratification phenomenon that takes place inside the cavity. We observe at first that applying constant pressure outlet boundary conditions directly at the vent surfaces underestimates the volumetric flow rate of air entering the enclosure and thus overestimate the helium mass inside the cavity. On the contrary, modelling an exterior region in the computational domain better predicts the air flow-rate entrance and numerical results matches better with the experimental PIV data. It has been figured out that the coarse DNS predictions match better with the velocities PIV measurements, compared to the LES. Numerical prediction of the helium field depicts a homogeneous layer formed at the top of the cavity, with a concentration in good agreement with the theoretical model of Linden et al. 1990. However, the position and the thickness of the layer do not correspond to the theory. This is mainly due to the direct interactions between the buoyant jet and both the solid boundaries of the cavity and the exterior environment. Statistical analysis regarding the buoyancy production of the turbulent kinetic energy (TKE) served to identify the limits of the buoyant jet
Gonzalez, Thierry. "Contributions aux conditions d'interface et conditions aux limites pour le systeme d'equations euler compressible". Paris 6, 2000. http://www.theses.fr/2000PA066512.
Texto completo da fonteBrouillat, Sébastien. "Conditions aux limites absorbantes d'ordre élevé en électromagnétisme". Bordeaux 1, 1996. http://www.theses.fr/1996BOR10608.
Texto completo da fonteEl, Ouaraini Rachida. "Sensibilité des assimilations d'ensemble globales et régionales aux conditions initialites et aux conditions limites latérales". Phd thesis, Toulouse, INPT, 2016. http://oatao.univ-toulouse.fr/15999/1/ElOuaraini.pdf.
Texto completo da fonteUzan, Jean-Philippe. "Defauts topologiques et conditions aux limites en cosmologie primordiale". Paris 11, 1998. http://www.theses.fr/1998PA112143.
Texto completo da fonteSesques, Muriel. "Conditions aux limites artificielles pour le système de Maxwell". Bordeaux 1, 1990. http://www.theses.fr/1990BOR10606.
Texto completo da fonteLivros sobre o assunto "Conditions aux limites de Ventcel"
Yahya, Rahmat-Samii, ed. Impedance boundary conditions in electromagnetics. Washington, DC: Taylor & Francis, 1995.
Encontre o texto completo da fonteSurface Impedence Boundary Conditions. CRC, 2008.
Encontre o texto completo da fonteYuferev, Sergey V. Surface Impedance Boundary Conditions: A Comprehensive Approach. Taylor & Francis Group, 2010.
Encontre o texto completo da fonteIda, Nathan, e Sergey V. Yuferev. Surface Impedance Boundary Conditions: A Comprehensive Approach. Taylor & Francis Group, 2018.
Encontre o texto completo da fonteIda, Nathan, e Sergey V. Yuferev. Surface Impedance Boundary Conditions: A Comprehensive Approach. Taylor & Francis Group, 2018.
Encontre o texto completo da fonteIda, Nathan, e Sergey V. Yuferev. Surface Impedance Boundary Conditions: A Comprehensive Approach. Taylor & Francis Group, 2018.
Encontre o texto completo da fonteCapítulos de livros sobre o assunto "Conditions aux limites de Ventcel"
"Conditions aux limites de Dirichlet par pénalisation - Couches limites". In Eléments d’analyse pour l’étude de quelques modèles d’écoulements de fluides visqueux incompressibles, 263–99. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/3-540-29819-3_6.
Texto completo da fonte"Conditions aux limites en sortie d’un écoulement". In Eléments d’analyse pour l’étude de quelques modèles d’écoulements de fluides visqueux incompressibles, 245–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/3-540-29819-3_5.
Texto completo da fonte"Chapitre 12 Problèmes à conditions aux limites et problèmes aux valeurs propres". In Méthodes numériques appliquées, 281–300. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0990-5-013.
Texto completo da fonte"Chapitre 12 Problèmes à conditions aux limites et problèmes aux valeurs propres". In Méthodes numériques appliquées, 281–300. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0990-5.c013.
Texto completo da fonteBEN-AHMED, Sabrina, Jean-Noël ALBERTINI, Jean-Pierre FAVRE, C. Alberto FIGUEROA, Eugenio ROSSET, Francesca CONDEMI e Stéphane AVRIL. "Simulations numériques de l’impact hémodynamique des interventions endovasculaires complexes". In Écoulements biologiques dans les grands vaisseaux, 45–70. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9065.ch2.
Texto completo da fonteBosseur, F., e P. Orenga. "Determination de Conditions Aux Limites En Mer Ouverte Par Une Methode de Controle Optimal". In Nonlinear Partial Differential Equations and their Applications - Collège de France Seminar Volume XIV, 103–32. Elsevier, 2002. http://dx.doi.org/10.1016/s0168-2024(02)80007-8.
Texto completo da fonte"Deuxième partie : Enseigner et apprendre à l’ère du COVID-19 : Enjeux, défis et opportunités". In Les écoles africaines à l’ère du COVID-19, 187–90. Editions des archives contemporaines, 2024. http://dx.doi.org/10.17184/eac.7928.
Texto completo da fonte"Première partie : Les écoles africaines face à la crise : Dispositif, résilience et management". In Les écoles africaines à l’ère du COVID-19, 101–4. Editions des archives contemporaines, 2024. http://dx.doi.org/10.17184/eac.7917.
Texto completo da fonteTrabalhos de conferências sobre o assunto "Conditions aux limites de Ventcel"
Sanchez, Martin. "Conditions aux limites liées à la réflexion de la houle et distribution des énergies dans un bassin portuaire". In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 1996. http://dx.doi.org/10.5150/jngcgc.1996.004-s.
Texto completo da fonteDegorce, T. "Le défaut osseux antérieur : un défi esthétique et chirurgical". In 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206601002.
Texto completo da fonte