I. Bogdanov, S. Jardel, A. Turki, and A. Kamp
Open & Experimental Centre for Heavy Oil, University of Pau, Pau, France
Pore-scale modeling of multiphase flow through porous media is addressed most frequently to improve our understanding of flow and transport phenomena in such settings. It can be used to obtain macro-scale constitutive equations, to assign multiphase flow properties in large scale models, to predict how these properties may vary with rock type, wettability, etc. The description of a physical ...
B. Chinè[1,2], and M. Monno[1,3]
Laboratorio MUSP, Macchine Utensili e Sistemi di Produzione, Piacenza, Italy
Instituto Tecnològico de Costa Rica, Escuela de Ciencia e Ingenierìa de Materiales, Cartago, Costa Rica
Politecnico di Milano, Dipartimento di Meccanica, Milano, Italy
We use COMSOL Multiphysics to model a gas bubble expansion in a viscous liquid initially at rest, a very common system for lightweight foamed materials from metal production and polymer processing. Modelling and simulation of foam processing during the production step involves many complexities, mainly due to the coupled momentum, mass and energy transport mechanisms, presence of more phases in ...
2D Axial-Symmetric Model For Fluid Flow And Heat Transfer In The Melting And Resolidification Of A Vertical Cylinder
S. Morville, M. Carin, M. Muller, M. Gharbi, P. Peyre, D. Carron, P. Le Masson, and R. Fabro
Laboratoire LIMATB, Université de Bretagne Sud, Lorient , France
Laboratoire PIMM, Arts et Métiers ParisTech, Paris, France
Laser direct deposition is a process, different from molding or machining, which allows the producing of fully densified and operational components. This technique involves injecting metal powder through a coaxial nozzle into a melt pool obtained by a moving laser beam. The final object is obtained by superimposing the layers created by the process. The roughness of the functional part is ...
Robust and Reliability-based Design Optimization of Electromagnetic Actuators Using Heterogeneous Modeling with COMSOL Multiphysics and Dynamic Network Models
H. Neubert, A. Kamusella, and T-Q. Pham
Technische Universität Dresden, Germany
OptiY e. K. Aschaffenburg, Germany
For an exemplary electromagnetic actuator used to drive a Braille printer, a design optimization was performed. The optimization involves stochastic variables and comprises nominal optimization, robustness analysis and robust design optimization. A heterogeneous model simulates the static and the dynamic behavior of the actuator and its non-linear load. It consists of a network model in ...
G. Maizza, and R. Cagliero
Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino, Italy
Instrumented indentation is increasingly used as an alternative non-destructive test method to measure mechanical properties of small volumes of materials. In this work, the instrumented indentation test is applied as a non-destructive method to assess the mechanical properties of TiAl components during the setup of a real production process. This study is a preliminary contribution devoted to ...
J.F. Dannenberg, J. Brinkert, and E.A.D. Lamers
Reden b.v., Hengelo (ov.), The Netherlands
One of the upcoming technologies in displays is that of the electrowetting displays. A surface can be covered by a colored oil or transparent water using a voltage to increase or decrease the wettability of the surface. A simulation of the behavior of such a thin film of oil in water, forced to move due an electrostatic field, has been made using the level-set, two-phase flow application mode ...
Technical University of Delft, The Netherlands
In this paper we present a set of numerical models created with COMSOL Multiphysics. The set includes quantitative models of a superconducting tape operated at 77 Kelvin, carrying a transport current and exposed to external magnetic field; an array of such tapes and a triaxial high temperature superconducting cable. Similar models were created in the past. However, an advantage of our approach ...
S. Curcio, and M. Aversa
Department of Engineering Modelling, University of Calabria, Rende, Italy
In the modern food industry one of the most important problems to face is to preserve products from deterioration: a widely used solution is the convective foods drying. Drying is based on a simultaneous transfer of both heat and water that takes place when dry and warm air flows around a moist and cold food sample. The aim of the present work is the development a fundamental multiphase approach ...
A. Bissal, G. Engdahl, E. Salinas, and M. Ohrstrom
ABB / KTH, Stockholm, Sweden
The Thomson coil’s (TC) inherent characteristics are appropriate to meet the needs of high speed actuators for mechanical switching devices in so-called smart grids. This is due to the massive forces that it can exert in the time scale of milliseconds. A coupled COMSOL Multiphysics model is developed in 2D involving spice circuits, Magneto-statics, and Moving Mesh Mode for predicting the motion ...
Two-Dimensional FEM Analysis Of Brillouin Gain Spectra In Acoustic Guiding And Acoustic Antiguiding Single Mode Optical Fibers
Y.S. Mamdem, X. Pheron, F.Taillade, Y. Jaouën, R. Gabet, V. Lanticq[1,3], G. Moreau, A. Boukenter, Y. Ouerdane, S. Lesoille, and J. Bertrand
EDF R&D, Chatou, France
ANDRA, Chatenay-Malabry, France
LCPC, Paris, France
Telecom ParisTech, Paris, France
Laboratoire Hubert Curien, Saint-Etienne, France
We present a full modal -analysis of optical and acoustic properties based on two-dimensional finite-element method (2D-FEM) for Brillouin Gain spectrum (BGS) determination in optical fibers with COMSOL. This model enables us to predict precisely the BGS of any kind of silica fiber knowing well the geometry of doping composition. The results of numerical modeling have shown good agreement in ...