Littérature scientifique sur le sujet « Diffuse-Interface approach »
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Articles de revues sur le sujet "Diffuse-Interface approach"
Gránásy, L. « Diffuse Interface Approach to Crystal Nucleation ». Materials Science Forum 215-216 (juin 1996) : 451–58. http://dx.doi.org/10.4028/www.scientific.net/msf.215-216.451.
Texte intégralGránásy, L. « Diffuse Interface Approach to Vapour Condensation ». Europhysics Letters (EPL) 24, no 2 (10 octobre 1993) : 121–26. http://dx.doi.org/10.1209/0295-5075/24/2/008.
Texte intégralRätz, Andreas, et Axel Voigt. « PDE's on surfaces---a diffuse interface approach ». Communications in Mathematical Sciences 4, no 3 (2006) : 575–90. http://dx.doi.org/10.4310/cms.2006.v4.n3.a5.
Texte intégralGlasner, Karl. « A diffuse interface approach to Hele Shaw flow ». Nonlinearity 16, no 1 (28 octobre 2002) : 49–66. http://dx.doi.org/10.1088/0951-7715/16/1/304.
Texte intégralGránásy, László, et Dieter M. Herlach. « Diffuse interface approach to crystal nucleation in glasses ». Journal of Non-Crystalline Solids 192-193 (décembre 1995) : 470–73. http://dx.doi.org/10.1016/0022-3093(95)00430-0.
Texte intégralELLIOTT, CHARLES M., et BJÖRN STINNER. « ANALYSIS OF A DIFFUSE INTERFACE APPROACH TO AN ADVECTION DIFFUSION EQUATION ON A MOVING SURFACE ». Mathematical Models and Methods in Applied Sciences 19, no 05 (mai 2009) : 787–802. http://dx.doi.org/10.1142/s0218202509003620.
Texte intégralRätz, Andreas, et Matthias Röger. « A new diffuse-interface approximation of the Willmore flow ». ESAIM : Control, Optimisation and Calculus of Variations 27 (2021) : 14. http://dx.doi.org/10.1051/cocv/2021013.
Texte intégralGalina, Reshetova, et Romenski Evgeniy. « Diffuse interface approach to modeling wavefields in a saturated porous medium ». Applied Mathematics and Computation 398 (juin 2021) : 125978. http://dx.doi.org/10.1016/j.amc.2021.125978.
Texte intégralBrannick, J., C. Liu, T. Qian et H. Sun. « Diffuse Interface Methods for Multiple Phase Materials : An Energetic Variational Approach ». Numerical Mathematics : Theory, Methods and Applications 8, no 2 (mai 2015) : 220–36. http://dx.doi.org/10.4208/nmtma.2015.w12si.
Texte intégralKajzer, Adam, et Jacek Pozorski. « Diffuse interface models for two-phase flows in artificial compressibility approach ». Journal of Physics : Conference Series 1101 (octobre 2018) : 012013. http://dx.doi.org/10.1088/1742-6596/1101/1/012013.
Texte intégralThèses sur le sujet "Diffuse-Interface approach"
Kirov, Nikolay. « Simulation numérique de l’écoulement air-huile dans une enceinte moteur ». Electronic Thesis or Diss., Toulouse, ISAE, 2024. http://www.theses.fr/2024ESAE0015.
Texte intégralThe current trend towards more powerful and fuel-efficient aircraft engines produces the need for bearings, capable of transferring higher mechanical loads between rotating and stationary machine components, at extreme temperatures and higher engine speeds. The bearings demand lubrication oil at all times in order to reduce friction, dissipate heat, drive tiny debris away and therefore ensure the mechanical integrity of the engine.The resulting oil mass flow rates within the engine are significant and thus the lubricant must be continuously recycled via an oil recirculation system. As a result, the bearings are encompassed within oil sumps, consisting of chambers, seals and the bearings themselves. The bearing chambers are essentially sealed chambers adjacent to, or sometimes enclosing the bearings, whereby the ejected oil is channeled into after lubrication. They are typically sealed with pressurised air on the opposite side, which is passed through a labyrinth seal in order to provide flow obstruction. Typically, a vent port opening is included on the top for the air to escape, and a scavenge port opening is located near the bottom to lead the oil to the oil scavenge pumps back to the reservoir.While still contained within the bearing chamber, the oil and the air form a complex two-phase flow, whereby centrifugal effects, aerodynamic shear and gravity forces cause the majority of the oil to disperse within the bearing chamber and accumulate as film on its outer stationary walls. Heat transfer from these walls to the pre-cooled oil takes place, therefore giving it an important secondary function - to absorb some of the heat and therefore cool the bearing chamber enclosure. It is important, however, that the oil from the bearings is collected and returned to the reservoir before reaching temperatures that are too high, in order to avoid coking or even worse - ignition, that can start a fire within the bearing chamber. The complex two-phase flow physics lead to an optimisation problem which can only be tackled via numerical simulations.To date, a considerable amount of uncertainty remains concerning the most optimal computational modelling practice for the accurate, reliable and cost-efficient simulation of bearing chambers across different operating conditions. The objective of this thesis, is therefore to test several computational modelling approaches for the simulation of a simplified bearing chamber test rig, hereby named ELUBSYS, for which some experimental measurements are available that can be used to provide means of validation of the said approaches. These are, namely, an interfacial multi-fluid diffuse-interface approach, an Eulerian Integral Thin Film (EITF) approach, a two-way coupled Discrete Parcel Method approach, and, lastly, an EITF-DPM coupled approach. During all of these investigations, new knowledge has been gained for the flow field characteristics, influencing parameters and overall predictory performance, as compared to the experimental data for two bearing chamber configurations under a variety of oil mass flow rates and shaft rotational speeds.The cost-efficient coupled EITF-DPM methodology proposed within this thesis was found to obtain good accuracy for the film thickness distribution measurements for a variety of operating conditions
Ait-Ali, Takfarines. « Modélisation de la cavitation par une approche à interface diffuse avec prise en compte de la tension de surface ». Thesis, Paris, ENSAM, 2015. http://www.theses.fr/2015ENAM0024/document.
Texte intégralCavitation is the transformation of a liquid into vapor which is caused by a pressure drop below the vapor saturation pressure. This phenomenon usually occurs in turbine engines that interact with liquids like: hydraulic pumps, injectors, inductors or boat propellers. View its negative effects: noise, vibrations, damage to the metal and decreased performance, it should be included in the design of turbomachinery The main objective of this thesis is to model this phenomenon so as to reproduce the nucleation, convection and the implosion of cavitation bubbles. We rely on a diffuse interface model (the homogeneous equilibrium model) on which we graft a surface tension model based on compressible Navier Stokes & Korteweg equations. We study the influence of surface tension on the bubble collapse. We used a finite volume approach whose spatial discretization is made by moving least squared method. Coupled with a Riemann solver called SLAU, the numerical model can go further difficulties related to the nature of the cavitation phenomenon which is mainly the strong gradients that remain through the liquid-vapor interface. Another issue addressed in this thesis is the determination of a numerical capillary coefficient which corresponds to a real surface tension in function of the thickness of the artificially extended interface for a given mesh
Diedhiou, Moussa Mory. « Approche mixte interface nette-diffuse pour les problèmes d'intrusion saline en sous-sol : modélisation, analyse mathématique et illustrations numériques ». Thesis, La Rochelle, 2015. http://www.theses.fr/2015LAROS023/document.
Texte intégralThe context of the subject is the management of aquifers, in especially the control of their operations and their possible pollution. A critical case is the saltwater intrusion problem in costal aquifers. The goal is to obtain efficient and accurate models to simulate the displacement of fresh and salt water fronts in coastal aquifer for the optimal exploitation of groundwater. More generally, the work applies for miscible and stratified displacements in slightly deformable porous media. In this work we propose an original model mixing abrupt interfaces/diffuse interfaces approaches. The advantage is to adopt the (numerical) simplicity of a sharp interface approach, and to take into account the existence of diffuse interfaces. The model is based on the conservation laws written in the saltwater zone and in the freshwater zone, these two free boundary problems being coupled through an intermediate phase field model. An upscaling procedure let us reduce the problem to a two-dimensional setting. The theoretical analysis of the new model is performed. We also present numerical simulations comparing our 2D model with the classical 3D model for miscible displacement in a confined aquifer. Physical predictions from our new model are also given for an unconfined setting
Frisani, Angelo 1980. « Direct Forcing Immersed Boundary Methods : Finite Element Versus Finite Volume Approach ». Thesis, 2012. http://hdl.handle.net/1969.1/148236.
Texte intégralLivres sur le sujet "Diffuse-Interface approach"
The Diffuse Interface Approach in Materials Science. Berlin, Heidelberg : Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/3-540-36409-9.
Texte intégralEmmerich, Heike. Diffuse Interface Approach in Materials Science : Thermodynamic Concepts and Applications of Phase-Field Models. Springer London, Limited, 2004.
Trouver le texte intégralEmmerich, Heike. Diffuse Interface Approach in Materials Science : Thermodynamic Concepts and Applications of Phase-Field Models. Springer Berlin / Heidelberg, 2011.
Trouver le texte intégralEmmerich, Heike. The Diffuse Interface Approach in Materials Science : Thermodynamic Concepts and Applications of Phase-Field Models (Lecture Notes in Physics Monographs). Springer, 2003.
Trouver le texte intégralWright, A. G. The optical interface to PMTs. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199565092.003.0003.
Texte intégralChapitres de livres sur le sujet "Diffuse-Interface approach"
Clarke, David R. « The Intergranular Film in Silicon Nitride Ceramics : A Diffuse Interface Approach ». Dans Tailoring of Mechanical Properties of Si3N4 Ceramics, 291–301. Dordrecht : Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-0992-5_21.
Texte intégralMagiera, Jim, et Christian Rohde. « Analysis and Numerics of Sharp and Diffuse Interface Models for Droplet Dynamics ». Dans Fluid Mechanics and Its Applications, 67–86. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-09008-0_4.
Texte intégralChen, Ching-Yao, et Ting-Shiang Lin. « Interfacial Instability of a Non-magnetized Drop in Ferrofluids Subjected to an Azimuthal Field : A Diffuse-Interface Approach ». Dans Advances in Computational Fluid-Structure Interaction and Flow Simulation, 181–92. Cham : Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-40827-9_14.
Texte intégralPecenko, A., et J. G. M. Kuerten. « The Diffuse Interface Method with Korteweg Approach for Isothermal, Two-Phase Flow of a Van der Waals Fluid ». Dans Direct and Large-Eddy Simulation VII, 479–84. Dordrecht : Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-3652-0_71.
Texte intégralGarcke, Harald, Michael Hinze et Christian Kahle. « Diffuse Interface Approaches in Atmosphere and Ocean—Modeling and Numerical Implementation ». Dans Mathematics of Planet Earth, 287–307. Cham : Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05704-6_9.
Texte intégralDally, Tim, Carola Bilgen, Marek Werner et Kerstin Weinberg. « Cohesive Elements or Phase-Field Fracture : Which Method Is Better for Dynamic Fracture Analyses ? » Dans Modeling and Simulation in Engineering - Selected Problems. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.92180.
Texte intégralLi, D. Y., et L. Q. Chen. « Computer Simulation of Microstructural Evolution Under External Stresses ». Dans Computer-Aided Design of High-Temperature Materials, 212–28. Oxford University PressNew York, NY, 1999. http://dx.doi.org/10.1093/oso/9780195120509.003.0017.
Texte intégralActes de conférences sur le sujet "Diffuse-Interface approach"
Patel, Samarth C., John Griffin, Emma M. Schmidt, Brandon Runnels et John M. Quinlan. « A Diffuse Interface Approach to Modeling Acoustic Wave-Droplet Interactions ». Dans AIAA SCITECH 2024 Forum. Reston, Virginia : American Institute of Aeronautics and Astronautics, 2024. http://dx.doi.org/10.2514/6.2024-1659.
Texte intégralSun, Ying, et Christoph Beckermann. « Phase-Field Simulation of Solidification With Density Change ». Dans ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60875.
Texte intégralNavah, Farshad, Marc-Étienne Lamarche-Gagnon, Florin Ilinca, Martin Audet, Marjan Molavi-Zarandi et Vincent Raymond. « Development of a Topology Optimization Framework For Cooling Channel Design in Die Casting Molds ». Dans ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-73363.
Texte intégralChen, Yuqi, James M. McDonough et Kaveh A. Tagavi. « A Hyperbolic Phase-Field Approach for Solidification With Supercooling ». Dans ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-1026.
Texte intégralDe Bellis, Lisa, Ravi S. Prasher et Patrick E. Phelan. « Predicting Thermal Boundary Resistance Using Monte Carlo Simulation ». Dans ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0708.
Texte intégralCazé, Joris, Fabien Petitpas, Eric Daniel, Sébastien Le Martelot et Matthieu Queguineur. « Modeling and Simulation of the Cavitation Phenomenon in a Turbopump : A Multiphase Approach ». Dans ASME Turbo Expo 2022 : Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-78025.
Texte intégralMajidi, Sahand, et Asghar Afshari. « Adaptive Mesh Simulations of Supersonic Liquid Jets Spreading in Quiescent Gaseous Media ». Dans ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/fedsm2014-21846.
Texte intégralMichopoulos, John G., Athanasios P. Iliopoulos, John C. Steuben, Andrew J. Birnbaum, Yao Fu et Jeong-Hoon Song. « Towards Computational Synthesis of Microstructural Crystalline Morphologies for Additive Manufacturing Applications ». Dans ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/detc2017-68149.
Texte intégralPastor, J. M., J. M. Desantes, J. M. García-Oliver, A. Pandal, B. Naud, K. Matusik, D. Duke, A. Kastengren, C. Powell et D. P. Schmidt. « Modelling and validation of near-field Diesel spray CFD simulations based on the Σ -Y model ». Dans ILASS2017 - 28th European Conference on Liquid Atomization and Spray Systems. Valencia : Universitat Politècnica València, 2017. http://dx.doi.org/10.4995/ilass2017.2017.4715.
Texte intégralLandis, Chad M. « Phase Field Modeling of Ferroelectric Domain Wall Interactions With Charge Defects ». Dans ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-16184.
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