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Auswahl der wissenschaftlichen Literatur zum Thema „Méthodes de particules lagrangiennes“
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Zeitschriftenartikel zum Thema "Méthodes de particules lagrangiennes"
Dramais, Guillaume, Benoît Camenen und Jérôme Le Coz. „Comparaison de methodes pour la mesure des matieres en suspension dans les cours d'eau, en présence de sable“. La Houille Blanche, Nr. 5-6 (Oktober 2018): 96–105. http://dx.doi.org/10.1051/lhb/2018056.
Der volle Inhalt der QuelleGuegan, Hervé. „Méthodes d’analyses élémentaires : revue comparée des techniques utilisables à la caractérisation des poussières fines“. Pollution atmosphérique, NS 2 (01.09.2010): 83–89. http://dx.doi.org/10.54563/pollution-atmospherique.7084.
Der volle Inhalt der QuellePICARD, M., C. LE FUR, J. P. MELCION und C. BOUCHOT. „Caractéristiques granulométriques de l’aliment : le “point de vue” (et de toucher) des volailles“. INRAE Productions Animales 13, Nr. 2 (18.04.2000): 117–30. http://dx.doi.org/10.20870/productions-animales.2000.13.2.3773.
Der volle Inhalt der QuelleServais, P., P. Laurent und G. Randonl. „Mesure de la biomasse et de l'activité bactérienne dans l'eau de distribution“. Revue des sciences de l'eau 5, Nr. 4 (12.04.2005): 473–88. http://dx.doi.org/10.7202/705142ar.
Der volle Inhalt der QuelleBARBIER, J. S., R. DRIS, J. GASPERI, C. LECARPENTIER, K. DELABRE, S. THIBERT und B. TASSIN. „État de l’art sur la présence de microplastiques dans les eaux destinées à la consommation humaine“. 6 6, Nr. 6 (20.06.2022): 93–123. http://dx.doi.org/10.36904/tsm/202206093.
Der volle Inhalt der QuelleHERNANDEZ-SHEK, M. A., P. PEULTIER, A. PAUSS und T. RIBEIRO. „Une revue des instruments de caractérisation rhéologique de biomasses appliqués à la méthanisation en voie solide continue“. Techniques Sciences Méthodes 5 (22.05.2023): 48–81. http://dx.doi.org/10.36904/tsm/202305048.
Der volle Inhalt der QuelleGILLOT, S., Y. FAYOLLE und C. ROCHE. „Densification des boues activées par hydrocyclones – impact de la granulation partielle sur les performances de traitement“. Techniques Sciences Méthodes 12 (20.01.2023): 133–47. http://dx.doi.org/10.36904/202212133.
Der volle Inhalt der QuellePICARD, M., J. P. MELCION, C. BOUCHOT und J. M. FAURE. „Picorage et préhensibilité des particules alimentaires chez les volailles“. INRAE Productions Animales 10, Nr. 5 (09.12.1997): 403–14. http://dx.doi.org/10.20870/productions-animales.1997.10.5.4016.
Der volle Inhalt der QuelleBanas, D., S. Capizzi, G. Masson, L. Leglize, P. Wagner und J. C. Pihan. „Nouvelles trappes à sédiment destinées aux milieux peu profonds vidangeables“. Revue des sciences de l'eau 15, Nr. 1 (12.04.2005): 263–72. http://dx.doi.org/10.7202/705451ar.
Der volle Inhalt der QuelleLaunay, Marina, Jérôme Le Coz, Seydina Diouf, Benoît Camenen, Fabien Thollet und Marina Coquery. „Réévaluation des apports moyens de matières en suspension de l'Arve au Rhône“. La Houille Blanche, Nr. 2 (April 2019): 89–100. http://dx.doi.org/10.1051/lhb/2019019.
Der volle Inhalt der QuelleDissertationen zum Thema "Méthodes de particules lagrangiennes"
Jenkinson, William. „Simulation de la mécanique mésoscopique des aliments par méthodes de particules lagrangiennes“. Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASB047.
Der volle Inhalt der QuelleThe role of mesoscopic mechanics in food processing and design is not well understood, particularly for oral processing and texture perception. Despite the recognized importance of soft matter, the food science community has struggled to bridge the gap between micro-, meso-, and macro-scale behaviours using simulations. This thesis addresses this challenge by focusing on mechanical simulations, excluding thermal, chemical and physicochemical effects, to explore food behaviour at the mesoscopic scale. We have developed a simulation framework within the LAMMPS environment, combining smoothed-particle hydrodynamics (SPH) implementations for liquids and elastic solids. We validated the framework across scenarios such as Couette flow and deformation of granules in a flow. The results show the framework's effectiveness in capturing food structure dynamics and interactions with cilia and papillae and offer new insights into texture perception and hydrodynamics. The study also highlights how granule elasticity and volume fraction impact flow properties and their eventual role in texture perception. This work focuses on mechanics while deliberately remaining flexible enough to integrate mechanical, thermal, chemical, and biological processes in future food science models. Proposed future research includes strategies to integrate more physics and scales and efforts to improve the accessibility of simulation tools for engineers, advancing practical applications in food science
Chéron, Victor. „Couplage de la méthode de capture d'interface et de particules lagrangiennes pour la simulation de l'atomisation“. Thesis, Normandie, 2020. http://www.theses.fr/2020NORMR097.
Der volle Inhalt der QuelleThe study of the liquid jet’s atomization consisting of two immiscible phases is a fundamental research subject. The main motivations linked to the study of these phenomena are the numerous applications resulting from them. For example, in the study of the propagation of a spray within a combustion chamber or for pharmaceutical applications. Their study is carried out by a theoretical, experimental and numerical approach. Each of these techniques faces its own limitations: in the numerical study, the treatment of the droplets resulting from the jet break is a limiting factor due to the size ratio introduced. This thesis manuscript presents the coupling between an Eulerian interface treatment method and a Lagrangian particle transport method, proposing a multi-scale approach to atomization. The numerical solver Archer is used to transport a two-phase flow and to study its evolution, solving the incompressible Navier Stokes equations. The interface separating the two phases is represented by a method combining precision and robustness, the Volume of Fluid/Level-Set coupling. The discretization of the Navier Stokes equations and the transport of the interface is presented in the first part of this manuscript. This introduces the weaknesses of this method due to the multi-scale aspect of the atomized jets: the low precision of the transport of the drops resulting from the secondary atomization. The second section of this manuscript is dedicated to the introduction of Lagrangian drop transport, different approaches are implemented and validated within the computational code Archer. Then, the coupling between the Eulerien and Lagrangian solver, validated from numerical experiments, is introduced. The latter aim to present the methodology implemented to validate the coupling while respecting the conservation of time and mass. This method is then applied to academic cases to introduce the parameterization allowing the junction between the Eulerien and Lagrangien solvers. Finally, the developed method is applied to the study of an atomized jet of crossflow configuration, used in gas turbine or ramjet. The results obtained demonstrate the possibilities related to the Eulerien/Lagrangien coupling, both on the physical and numerical aspects, opening up a model of drop breakup under Lagrangien transport
Chauvin, Corine. „Influence des forces d'interactions particulaires dans la simulation lagrangienne du comportement de particules en sédimentation et écoulements turbulents“. Rouen, 1991. http://www.theses.fr/1991ROUE5037.
Der volle Inhalt der QuellePham, Thi Trang Nhung. „Méthodes numériques pour l'équation de Vlasov réduite“. Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAD051/document.
Der volle Inhalt der QuelleMany numerical methods have been developed in order to selve the Vlasov equation, because computing precise simulations in a reasonable time is a real challenge. This equation describes the time evolution of the distribution function of charged particles (electrons/ions), which depends on 3 variables in space, 3 in velocity and time. The main idea of this thesis is to rewrite the Vlasov equation in the form of a hyperbolic system using a semi-discretization of the velocity. This semi-discretization is achieved using the finite element method. The resulting model is called the reduced Vlasov equation. We propose different numerical methods to salve this new model efficiently: finite volume methods, semi-Lagrangian methods and discontinuous Galerkin methods
Maftei, Radu. „Analyse stochastique pour la simulation de particules lagrangiennes : application aux collisions de particules colloïdes“. Thesis, Université Côte d'Azur (ComUE), 2017. http://www.theses.fr/2017AZUR4130/document.
Der volle Inhalt der QuelleThis thesis broadly concerns colloidal particle simulation which plays an important role in understanding two-phase flows. More specifically, we track the particles inside a turbulent flow and model their dynamics as a stochastic process, their interactions as perfectly elastic collisions where the influence of the flow is modelled by a drift on the velocity term. By coupling each particle and considering their relative position and velocity, the perfectly elastic collision becomes a specular reflection condition. We put forward a time discretisation scheme for the resulting Lagrange system with specular boundary conditions and prove that the convergence rate of the weak error decreases at most linearly in the time discretisation step. The evidence is based on regularity results of the Feynman-Kac PDE and requires some regularity on the drift. We numerically experiment a series of conjectures, amongst which the weak error linearly decreasing for drifts that do not comply with the theorem conditions. We test the weak error convergence rate for a Richardson Romberg extrapolation. We finally deal with Lagrangian/Brownian approximations by considering a Lagrangian system where the velocity component behaves as a fast process. We control the weak error between the position of the Lagrangian system and an appropriately chosen uniformly elliptic diffusion process and subsequently prove a similar control by introducing a specular reflecting boundary on the Lagrangian and an appropriate reflection on the elliptic diffusion
Lefrançois, Julie. „Optimisation du rendement d'une turbine multi-ailes à l'aide d'une méthode lagrangienne par particules vortex“. Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25539/25539.pdf.
Der volle Inhalt der QuelleSakiz, Marc. „Simulation numérique lagrangienne et modélisation eulérienne d'écoulements diphasiques gaz-particules en canal vertical“. Marne-la-vallée, ENPC, 1999. http://www.theses.fr/1999ENPC9925.
Der volle Inhalt der QuelleBenabdallah, Moulay. „Simulation lagrangienne du transfert de chaleur dans un écoulement gaz-solide en conduite“. Nancy 1, 1995. http://www.theses.fr/1995NAN10329.
Der volle Inhalt der QuelleLoubère, Raphaël. „Contribution au domaine des méthodes numériques Lagrangiennes et Arbitrary-Lagrangian-Eulerian“. Habilitation à diriger des recherches, Université Paul Sabatier - Toulouse III, 2013. http://tel.archives-ouvertes.fr/tel-00949809.
Der volle Inhalt der QuelleBerchet, Adrien. „Modélisation par des méthodes lagrangiennes du transport sédimentaire induit par les mascarets“. Thesis, Poitiers, 2014. http://www.theses.fr/2014POIT2319/document.
Der volle Inhalt der QuelleThe work performed during this thesis is a part of the Mascaret ANR project, which aims to understand the phenomenon of tidal bore, the study of its impact on the environment and its sensitivity to changes in that environment. The contribution of this thesis lies solely in the numerical part of this project. Only the sediment transport caused by the tidal bore is discussed. The goal is to build a generic numerical model of sediment transport which can therefore be applied to the specific case of tidal bores. Three methods are explored, a first for individual tracking of sediment grains and two to model the concentration of grains in the flow. The first method considers the smallest scales and will be called tracking method and consists of individual tracking of sediment grains. The second method, called particle method, focuses on larger scales and the transport of local concentration of sedimentary grains. The third method, which we call moments method, will focus on the largest scales, carrying a cloud of sediment grains as a whole using a single numerical particle characterized by the moments of its internal concentration distribution. This will characterize the local sediment transport process occurring during the passage of a tidal bore. Two undulating bores will be studied whose Froude numbers are close. It will be shown in particular that the Froude number is not a criterion to deduce the intensity of the induced tidal bores sediment transport
Bücher zum Thema "Méthodes de particules lagrangiennes"
Després, Bruno. Lois de Conservations Eulériennes, Lagrangiennes et Méthodes Numériques. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11657-5.
Der volle Inhalt der Quelleservice), SpringerLink (Online, Hrsg. Lois de Conservations Eulériennes, Lagrangiennes et Méthodes Numériques. Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg, 2010.
Den vollen Inhalt der Quelle findenDekeyser, Jean-Luc. Architectures et algorithmes parallèles pour les méthodes Monté Carlo en physique des particules. 1986.
Den vollen Inhalt der Quelle findenBuchteile zum Thema "Méthodes de particules lagrangiennes"
Cottet, Georges-Henri, Emmanuel Maitre und Thomas Milcent. „Méthodes Level Set et interfaces lagrangiennes“. In Mathématiques et Applications, 1–35. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-70075-1_1.
Der volle Inhalt der QuelleDesprés, Bruno. „Introduction“. In Lois de Conservations Eulériennes, Lagrangiennes et Méthodes Numériques, 1–3. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11657-5_1.
Der volle Inhalt der QuelleDesprés, Bruno. „Modèles“. In Lois de Conservations Eulériennes, Lagrangiennes et Méthodes Numériques, 5–37. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11657-5_2.
Der volle Inhalt der QuelleDesprés, Bruno. „Étude d’une loi de conservation“. In Lois de Conservations Eulériennes, Lagrangiennes et Méthodes Numériques, 39–86. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11657-5_3.
Der volle Inhalt der QuelleDesprés, Bruno. „Systèmes“. In Lois de Conservations Eulériennes, Lagrangiennes et Méthodes Numériques, 87–148. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11657-5_4.
Der volle Inhalt der QuelleDesprés, Bruno. „Le système de la dynamique des gaz compressibles“. In Lois de Conservations Eulériennes, Lagrangiennes et Méthodes Numériques, 149–97. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11657-5_5.
Der volle Inhalt der QuelleDesprés, Bruno. „Solveurs lagrangiens à un état et à deux états“. In Lois de Conservations Eulériennes, Lagrangiennes et Méthodes Numériques, 199–219. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11657-5_6.
Der volle Inhalt der QuelleDesprés, Bruno. „Systèmes lagrangiens multidimensionnels“. In Lois de Conservations Eulériennes, Lagrangiennes et Méthodes Numériques, 221–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11657-5_7.
Der volle Inhalt der QuelleV. SANDRAKOV, Gennadiy. „Modélisation de la dynamique des fluides hétérogènes avec transitions de phase et milieux poreux“. In Méthodes de calcul et modélisation mathématique en cyberphysique et applications techniques 1, 71–102. ISTE Group, 2024. https://doi.org/10.51926/iste.9164.ch4.
Der volle Inhalt der QuelleBerichte der Organisationen zum Thema "Méthodes de particules lagrangiennes"
Prud'homme, Pamela, Simon Aubin und Pierre-Luc Cloutier. Revue de littérature sur la composition des poussières de bois brûlé. IRSST, Dezember 2024. https://doi.org/10.70010/wmat6356.
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