L'ecole Nationale Supérieure de Physique de Grenoble
The students at ESPNG have, since 2002, been using COMSOL Multiphysics in order to master physical phenomena and the finite element method. We developed several projects based on the modeling of physics phenomena, and, in this paper, we present projects based on Physical Vapor Transport and Magnetic Levitation. --------------------------------- Keynote speaker's biography: Jean-Marc ...
Analysis of the Electric Field and the Potential Distribution in Cavities Inside Solid Insulating Electrical Materials
T. Seghir, D. Mahi,T. Lebey, and D. Malec
 Materials Laboratory, Electrical Engineering Institute, Amar Thelidji University of Laghouat, Algeria
 Electrical Engineering Laboratory, University of Paul Sabatier, Toulouse
Solid extruded polymeric materials such as crosslinked polyethylene are widely used in the electrical insulation of underground high voltage power transmission cables. This paper treats the combined effect of space charge and cavities, on the electric field, and potential and temperature distribution within the insulation. The model is a 3D stationary linear COMSOL Multiphysics model and the ...
J. Frassy, C. Lécot, C. Delattre, and A. Soucemarianadin
 LEGI UMR 5519, Grenoble
 LAMA UMR 5127, Le Bourget-du-Lac
 LETI, CEA Grenoble
We present simulations of drops spreading on heterogeneous surfaces. The droplet height is the solution of a time-dependent non-linear fourth order partial differential equation, which is solved using COMSOL Multiphysics. In the fully wetting case, we compare our results with experimental data and with previous results reported in the literature. The simulation results reveal how ...
Numerical Simulation of Moving Boundary Problems with the ALE Method: Validation in the Case of a Free Surface and a Moving Solidification Front
Université de Bretagne Sud
This work investigates numerical simulations of problems involving moving boundaries. The first case concerns the simulation of incompressible Newtonian fluid flow problems with free surfaces in the presence of surface tension (the sloshing problem). The second case deals with a problem of heat transfer in the presence of an advancing solidification front (the Stefan problem).
H. Szambolics, L. Buda-Prejbeanu, J.C. Toussaint[1,2], and O. Fruchart
 Laboratoire Louis Néel, Grenoble
 Laboratoire SPINTEC, Grenoble
In this paper we propose a finite element model (FEM), to solve the micro-magnetic equations. Two bi-dimensional test problems are treated to estimate the validity and the accuracy of this approach.
S. Pietrzyk, F. Dhainaut, A. Khodakov, and P. Granger
Université de Lille
In this paper, we present the modeling of catalytic reactions under non-steadystate conditions. Particularly, we study the Fisher-Tropsch reaction in a pulse reactor.
N. Brahmia, P. Bourgin, M. Boutaous, and D. Garcia
 Laboratoire de Recherche Pluridisciplinaire en Plasturgie
 Pôle Européen de Plasturgie Belignat
Thermoplastic polymers are frequently used in several industries, and represent the most important group of polymeric materials. During the injection moulding process, the cooling phase including solidification is often the most significant part of the manufacturing cycle. In this paper we study the coupling phenomena between the crystallization and the thermal kinetics in the polymer ...
Using COMSOL for Studying the Occurrence of a Constant-shaped Concentration Front in the Retention of Gaseous Pollutants by Adsorption Columns
A. Joly, V. Volpert, and A. Perrard
 Université de Lyon
 Institut de Recherches sur la Catalyse, Lyon
Various models, based on mass transfer and different isothermal adsorption equilibrium laws, are developed using COMSOL Multiphysics. These isotherms are representative of the adsorption of various pollutant-adsorbent systems frequently found in decontamination processes. Consequences on breakthrough curves are examined and possible applications to decontamination processes are discussed.
G. Louarn, S. Taleb, and S. Cuenot
Institut des Matériaux Jean Rouxel, Nantes
The knowledge of the light propagation through a nanometer-size aperture is crucial for Scanning Optical Near Field Microscopy (SNOM). In this work, we address a numerical study of the transmitted electric field through a SNOM probe. The influence of the wavelength is also studied. Our results show that the logarithmic power decreases linearly as a function of the aperture size, and the ...
S. Momjian, and D. Bichsel
 Hôpitaux Universitaires de Genève, Switzerland
 HESSO Ecole d’Ingénieurs de Genève, Switzerland
Elastic and poro-elastic models of ventricular dilatation in hydrocephalus are presented in this paper. An important result was the accumulation of fluid capping the horns of the ventricles. This indicates the importance of interstitial fluid in calculating of the deformation of the brain.