Thin films are very promising for the design of novel and an efficient Fault Current Limiter (FCL) made of high-temperature superconductors (HTS). However, before considering the use of these in a power grid, their thermal and highly... COMSOL Conference 2007, Grenoble F. Roy1, B. Dutoit1, F. Sirois2, and F. Grilli3 1École polytechnique fédérale de Lausanne, Lausanne, Switzerland 2Éole polytechnique de Montréal, Montréal, Canada 3F. Grilli, Los Alamos National Laboratory, Los Alamos, NM, USA
A crucial factor concerning modern reactors is a combination of laws and electro-technical rules defining appropriate produced sound levels. Currently, it is an important issue to reduce noise in order to fulfill all sound requirements.... COMSOL Conference 2007, Grenoble L. Verbruggen1, J. Kotiniitty2, and M. Lehtonen1 1Power Systems and High Voltage Laboratory, Helsinki University of Technology, Helsinki, Finland 2Nokian Capacitors Ltd., Tampere, Finland
The purpose of this work is to understand and model the electromagnetic field inside a microwave reactor, in order to study the interaction between the reactor and plasma discharge. The first goal of this study is to characterize the... COMSOL Conference 2007, Grenoble O. Geoffroy, and H. Rouch INOPRO, Telespace Vercors, Grenoble, France
A 3D finite element model was used to evaluate the time dependent ground deformation and the stress change caused by a pressure source embedded in a viscoelastic medium. In volcanic areas, the presence of inhomo-geneous materials and high... COMSOL Conference 2007, Grenoble D. Scandura1,2, G. Currenti1, and C. Del Negro1 1Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania, Catania, Italy 2Dipartimento di Matematica e Informatica, Università di Catania, Catania, Italy
CdTe and GaAs 3D semiconductor radiation detectors for medical imaging have been simulated. This was done through coupling Monte-Carlo simulations of interacting of X- and γ-rays with matter (using PENELOPE) while computating the... COMSOL Conference 2007, Grenoble M. Ruat, E. Gros d'Aillon, J. Tabary, and L. Verger LETI-CEA Recherche technologique, MINATEC, Grenoble, France
In this paper, we investigate random doping fluctuation effects in Trigate SOI MOSFETs by solving the 3D Poisson, Drift-diffusion and Continuity equations numerically.The presence of a single doping impurity atom induces a threshold... COMSOL Conference 2007, Grenoble R. Yan1, D. Lynch2, T. Cayron3, D. Lederer1, A. Afzalian1, C. W. Lee1, and J. P. Colinge1 1Tyndall National Institute, Lee Maltings, Prospect Row, Cork, Ireland 2University College Cork, Cork, Ireland 3Institut National Polytechnique, Grenoble, France
In this study, fluid-dynamics and thermal performance of active-chilled beams are investigated through 2D and 3D modeling in COMSOL Multiphysics. Three different typologies of air conditioning systems are considered. Results, obtained for... COMSOL Conference 2007, Grenoble G. Cammarata, M. Iacono, L. Cammarata, and G. Petrone Department of Industrial and Mechanical Engineering, University of Catania, Catania, Italy
Computational synthesis methods, used to help designers in the creative phase of the design process, often find an obstacle to their development in the difficulty of finding efficient simulation packages to integrate into the automated... COMSOL Conference 2007, Grenoble F. Bolognini1, A. A. Seshia1, and K. Shea2 1Engineering Department, University of Cambridge, Cambridge, UK 2Technical University of Munich, Munich, Germany
In this paper, we present a FEM model of a mixing MEMS μTAS device. A quasistatic magnetic field, produced by sequentially switched DC currents advected through conductors embedded in the device substrate beneath the flow channel, is... COMSOL Conference 2007, Grenoble A. M. Morega1, J. C. Ordonez2, and M. Morega1 1Politehnica University of Bucharest, Bucharest, Romania 2Florida State University, Tallahassee, FL, USA
The present work describes the first steps in creating a robust material model able to predict volume changes due to thermal expansion and phase transformations.A dilatometer test is simulated starting from room temperature, with an... COMSOL Conference 2007, Grenoble M. Tehler, and S. Jonsson Materials Science and Engineering, Royal Institute of Technology, Stockholm, Sweden
The purpose of this study was the optimization of an industrial furnace from a thermal point of view. Such a cylindrical furnace contains an Al-Mg molten alloy covered by a KCl-NaCl molten salt layer floating on it to prevent alloy... COMSOL Conference 2007, Grenoble J. P. Caire, and F. Jomard LEPMI, ENSEEG, Saint Martin d'Hères, France
In this paper, an experimental and theoretical study of natural convectional heat transfer from directly grown-on-package carbon nanostructure-based pin fin heatsinks is studied. The simulations are done by using the Heat Transfer Module... COMSOL Conference 2007, Grenoble P. Rezai1,2, M. S. Kabir1,2, and P. Enoksson1 1Department of Microtechnology and Nanoscience, Chalmers University of Technology, Gothenburg, Sweden 2SMOLTEK AB, Gothenburg, Sweden
This paper describes a model which simulates a stray current interface of underground steel structures through a traction power system, which causes accelerated corrosion.First preliminary calculations show that uncertainty in the soil... COMSOL Conference 2007, Grenoble W. H. A. Peelen, and W. M. G. Courage TNO Built Environment and Geosciences, Delft, The Netherlands
In this study, we extend the Convolution-Perfectly Matched Layer (C-PML) method we have developed for a first order system describing elastic waves in velocity and stress formulation to the same equation written as a second order system... COMSOL Conference 2007, Grenoble O. Bou Matar1,2, E. Galopin1, Y. Li1,2, and O. Ducloux1,2 1Institut d'Electronique, de Micro-électroniqueet de Nanotechnologie, Villeneuve d'Acsq, France 2Laboratoire Européen Associé en MagnétoAcoustiqueNonlinéaire de la matière condensée (LEMAC), Ecole Centrale de Lille, Villeneuve d'Ascq, France
This paper presents an analysis of a measurement principle for the determination of the mass flow of material through screw conveyors. The flow sensor design is based on capacitive sensing with the characteristic that the pipe content can... COMSOL Conference 2007, Grenoble A. Fuchs, and H. Zangl Institute of Electrical Measurement and Measurement Signal Processing, Graz University of Technology, Graz, Austria
In this paper, a simulation of a capacitive flowmeter utilizing a spatial filtering technique is presented. The flowmeter consists basically of ring shaped electrodes placed sequentially in the flow direction on the outside of a pipe. The... COMSOL Conference 2007, Grenoble D. Hrach, A. Fuchs, and H. Zangl Institute of Electrical Measurement and Measurement Signal Processing, Graz University of Technology, Graz, Austria
The objective of the paper is to present the results of a numerical study undertaken to investigate the effect of the number of baffles on the efficiency of a contact tank. Several 2-D steady-state and time-variable numerical simulations... COMSOL Conference 2007, Grenoble C. Gualtieri, and G. Ippolito Dept. of Hydraulic and Environmental Engineering, University of Napoli Federico II, Napoli, Italy
Using Computational Fluid Dynamics, different geometries of side-to-side a-v fistulas for hemodialysis access are evaluated. We created five CAD-models of fistulas with the length of the anastomosis varying from 5 to 15 mm. The five... COMSOL Conference 2007, Grenoble A. K. Niemann1,5, S. A. Kock1, J. V. Nygaard2, E-T. Fründ3, S. E. Petersen4, and J. M. Hasenkam5 1 MR-center, Aarhus University Hospital Skejby, Aarhus, Denmark 2Interdisciplinary Nanoscience Center, Faculty of Science, University of Aarhus, Skejby, Denmark 3Dept. of Radiology, Aarhus University Hospital, "Aalborg Sygehus Syd", Aalborg, Denmark 4Dept. of Urology, Aarhus University Hospital Skejby, Aarhus, Denmark 5Dept. of Cardio-Thoracic and Vascular Surgery, and Clinical Institute, Aarhus University Hospital Skejby, Aarhus, Denmark
Streak tubes are widely used in high-speed signal analysis; they give spatial, temporal and intensity information about one single event. Time resolutions of 0.7 pico-second can be achieved and in that time-domain, PHOTONIS tubes are... COMSOL Conference 2007, Grenoble J.-M. Barois, and C. Goulmy PHOTONIS, Brive, France
This presentation gives an introduction to the general outstanding features of micro fluidics, typical values of dimensionless groups and the underlying assumptions in common simulation approaches. Furthermore, the applicability of... COMSOL Conference 2007, Grenoble Friedhelm Schönfeld Head of the Simulation Group Department of Fluidics and Simulation Institut für Mikrotechnik Mainz (IMM) Mainz, Germany
