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Papers & Presentations

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Showing results 1 - 20 of 133

AC/DC Systems

	2D Magneto-Thermal Modeling of Coated High-Temperature Superconductors 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
	3-D Modeling of a Differential Impedance Obstacle Detection Sensor for Horizontal Directional Drilling Operations Horizontal Directional Drilling (HDD) is a commonly used technology for the installation of pipelines, conduits and cables in urban areas and across obstacles such as rivers, railways and freeways. A main concern in using the HDD method... COMSOL Conference 2007, Boston J. N. Shah¹, A. Jaganathan¹, E. N. Allouche¹, M. Kieba², and C. J. Ziolkowski² ¹Louisiana Tech University, Ruston, LA, USA ²Gas Technology Institute, Chicago, IL, USA
	AC/DC Modeling and Experimental Impedance Verification of 3D MEMS Inductor Coils In this work, an analysis is presented for a 3-dimensional RF MEMS coil using the COMSOL AC/DC module in conjunction with the CAD import module. The realization of being able to produce such 3-dimensional RF coils allows for less surface... COMSOL Conference 2008, Boston T. Reissman, and E. Garcia Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA
	A finite element analysis of a microfluidic lab-on-a-chip system The focus of this project was the development of a portable, hand-held device for fast, reliable testing of liquids in respect to certain components. Such a device allows for numerous applications, ranging from infection or drug abuse... COMSOL Conference 2009, Bielefeld, Germany Weddemann, Alexander.
	Air Gap Field Analysis of Single Sided Linear Induction Motor With Time-Harmonic Finite Element Method In recent years, the single-sided linear induction motor (SLIM) has been the most suitable choice for electric vehicles of the wheel and touchless type. The reason is simplicity in manufacturing, capability in applying direct force,... COMSOL Conference 2010, Bangalore M.S. Manna¹ , S Marwaha¹ , and N. Kaur² ¹ Dept. of EIE, Sant Longowal Inst. of Engg. & Tech Longowal, Sangrur, Punjab, India ² Dept. of ECE, Universal Group on Institutes, Lalaru, Punjab, India
	An Advanced Finite Element Reliability Tool for Stray Current Corrosion Assessments 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
	Analysis and Design of Electromagnetic Pump Liquid metal loops are used for heat removal and for the study of certain magneto-fluidic phenomenon like MHD (Magneto-Hydro Dynamic) effects. These loops operate at high temperatures and carry fluids that are invariably toxic in nature.... COMSOL Conference 2010, Bangalore V. Teotia, S. Malhotra, K. Singh, and U. Mahapatra Bhabha Atomic Research Centre, Mumbai, Maharashtra, India
	Analysis of a Three-phase Transformer Using COMSOL Multiphysics and a Virtual Reality Environment The simulation software COMSOL Multiphysics is applied to the numerical com-putation of the magnetic fields of a three-phase transformer. A three-dimensional model of the geometrical configuration is created with the help of the CAD tools... COMSOL Conference 2011, Stuttgart A.Buchau, and W. M. Rucker Institut für Theorie der Elektrotechnik Universität Stuttgart Stuttgart, Germany
	Analysis of Highly-dense LED Structures In this presentation we consider LED lighting. We begin the presentation by explaining the basics of LED lighting and the opportunities it provides. We then provide examples of different issues with LED lighting, such as optical,... COMSOL Conference 2006, Taipei Te-Yuan Chung National Central University
	Analysis of Multiconductor Quasi-TEM Transmission Lines and Multimode Waveguides This paper presents an analysis approach of multicondcutor quasi-TEM lines transmission interconnect in a single dielectric region and multimode waveguides using the finite element method (FEM). FEM is especially suitable and effective... COMSOL Conference 2010, Boston S.M. Musa¹ , M.N.O. Sadiku¹ , and O.D. Momoh² ¹ Prairie View A&M University, Prairie View, TX, USA ² Indiana University-Purdue University, Fort Wayne, IN, USA
	Analysis of the Electric Field and the Potential Distribution in Cavities Inside Solid Insulating Electrical Materials 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... COMSOL Conference 2006, Paris T. Seghir¹ , D. Mahi¹ ,T. Lebey² , and D. Malec² ¹ Materials Laboratory, Electrical Engineering Institute, Amar Thelidji University of Laghouat, Algeria ² Electrical Engineering Laboratory, University of Paul Sabatier, Toulouse
	An MHD Modeling of High-Temperature SiC Solution Growth Despite its real advantages compare to seeded sublimation growth, SiC solution growth has never given convincing results. The difficulty of stabilizing the growth front, and thus avoiding any polycrystal formation results from a poor... COMSOL Conference 2010, Paris F. Mercier¹ , D. Chaussende¹ , J.M. Dedulle^1,2 and J. Lefebure¹ ¹ Laboratoire des Matériaux et du Génie Physique (LMGP), Grenoble INP - CNRS, France ² IRIS Technologies, Grenoble, France
	Benchmark of COMSOL vs. ROXIE Codes for the Calculation of a Particle Accelerator Quadrupole The field quality requirements of most particle accelerator magnets are very tight and, therefore, very precise simulations are needed to accurately calculate these devices. CERN\'s ROXIE code is widely used as a reference software to... COMSOL Conference 2011, Stuttgart I. Rodriguez, and J. L. Munoz ESS Bilbao Bilbao, Spain
	Berechnung der Bewegung eines magnetisch angetriebenen Ankers Zur effizienten Entwicklung magnetisch angetriebener Schaltgeräte ist es aufgrund der zunehmenden Komplexität und des hohen Optimierungsdruckes notwendig leistungsstarke Berechnungsmethoden für Konstrukteure zu entwickeln. Nachdem... COMSOL Conference 2006, Frankfurt P.R. Zeller, and K. Schiefermayr Fachhochschule Wels, Automatisierungstechnik, Wels
	Calculating Iron Losses Taking into Account Effects of Manufacturing Processes Finite element modelling of electrical machines usually assumes uniform magnetic properties and loss behaviour throughout the steel laminations. It is well known that manufacturing processes, like the assembly of the machine, deteriorate... COMSOL Conference 2008, Hannover P. Goes, E. Hoferlin, and M. De Wulf OCAS N.V. – ArcelorMittal Research Gent, Belgium
	Calculation of Cable Parameters for Different Cable Shapes Efforts involving simulation of transmission line networks necessitate the accurate values of the parameters of the lines. In this paper, as an attempt in estimating such parameters, the parameters of high voltage asymmetric power... COMSOL Conference 2008, Hannover H. Lorenzen¹ , J. Timmerberg¹ , and S. Mylvaganam² ¹ Department of Electrical Engineering, UAS OOW, Wilhelmshaven, Germany ² Department Technology/Engineering, Telemark University College, Porsgrunn, Norway
	Computational study of Solidification and Melting of Alloys This paper is written in Chinese. --------------------------------- Keynote speaker's biography: Since 1991, Prof. Shuang-Shii Lian has been with the Department of Materials Science and Engineering, National Taiwan University. He... COMSOL Conference 2006, Taipei Shuang-Shii Lian National Taiwan University
	Computation of Electrical Parameters for Different Conducting Bodies Using Finite Element Method Accurate and efficient computation of electrical parameters for different conducting bodies represents an essential part of spacecraft modern integrated circuits. In this paper, we will illustrate modeling of inhomogeneous quasi-TEM... COMSOL Conference 2008, Boston S. Musa and M. Sadiku College of Engineering, Prairie View A&M University, Prairie View, TX, USA
	Computation of the Forces Acting on a Magnetic Bearing Due to Eddy Currents Forces due to induced current can play a significant role in the behavior of electro-magnetic devices. In some case these forces produce a useful effect, like in induction motors, whereas in others they involve non-desired phenomena, like... COMSOL Conference 2007, Grenoble V. Kluyskens, and B. Dehez Center of Research in Mechatronics, Université Catholique de Louvain, Louvain-La-Neuve, Belgium
	COMSOL Multiphysics Modeling for Design Optimization of Eddy Current Crack Detectors Passing alternating current through a wire placed just above a conducting surface induces eddy currents in that surface. Any cracks present in the conductor modify the eddy current distribution, creating a magnetic field signature... COMSOL Conference 2010, Boston E. Weststrate, M. Steinback, N. Rensing, and T. Tiernan Radiation Monitoring Devices Inc., Watertown, MA, USA

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AC/DC Systems