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
After previous microwave simulations done with very hard assumptions, we improve the model by using Funer model to improve prediction of plasma effects on the microwave coupling. Some parameters are still not well known and are used as... COMSOL Conference 2009, Milan O. Geoffroy1 and H. Rouch1 1 INOPRO, Villard de Lans, France
In this model a three-dimensional heat transfer analysis was performed by using COMSOL Multiphysics\' Heat Transfer Module. The model is about the heating of a set of vials (Figure 1) in a current of hot air in the laminar regime. We... COMSOL Conference 2012, Milan G. Mongatti1 , A. Borelli1 1 Marchesini Group, Pianoro, Italy
We have developed a numerical model to represent the effect of injection test in unsaturated porous and fractured rock mass. The test was conducted at the LSBB (Laboratoire Souterrain à Bas Bruit) site close to Rustrel, Vaucluse, France... COMSOL Conference 2012, Milan A. Thoraval1 , Y. Guglielmi2 , F. Cappa3 1 INERIS, Nancy, France 2 CEREGE, Aix-en-Provence, France 3 GEOAZUR, Valbonne, France
This work describes the design methodology and development of piezoelectric transducers for applications in fluids with COMSOL_Multiphysics. In these linear models for the acoustic-structure interaction approximate numerical solutions... COMSOL Conference 2012, Milan V.M. Acosta1 , E. Riera1 , G. Rodriguez1 , A. Pinto1 , A. Cardoni2 , J.A. Gallego-Juárez1 1 Power Ultrasonics Group, CSIC, Serrano, Madrid, Spain 2 Pusonics, Arganda del Rey, Madrid, Spain
Stethoscope is in use for more than 200 years for medical diagnostics, especially for auscultation. Recently, the unprecedented growth in mobile technology revived the use of stethoscope for Telehealthcare. Digital or electronic... COMSOL Conference 2012, Bangalore C. Thiagarajan1 , Gururajan R.2 , A. H. Baig2 , Prema S.3 1 ATOA Scientific Technologies Pvt Ltd, Whitefield, Bangalore, Karnataka India 2 University of Southern Queensland, Toowoomba Qld 4350, Australia. 3 RMK Engineering College, Chennai, Tamil Nadu, India
Modeling electromechanical actuation of ionic polymer-metal composite (IPMC) material is considered in this work. Ionic current in the polymer is described with the Poisson-Nernst-Planck system of equations. Calculated ionic concentration... COMSOL Conference 2011, Boston D. Pugal1 , K. Kim1 , and A. Aabloo2 1 ME Department, University of Nevada Reno, Reno, NV 2 University of Tartu, Tartu, Estonia
In this study, a new thermoelectric harvester with fluid flow for increased performance is introduced. The thermoelectric generator is 3D vertical configuration with p- and n-doped Silicon thermolegs. There is water flow between channels... COMSOL Conference 2011, Boston E. Topal Micro and Nanotechnology Program Middle East Technical University Ankara, Turkey
The aim of the proposed device is to overcome the typical drawbacks of MHD generators, such as the needed of a very high external magnetic field, the strong dependency of the efficiency by the temperature of the fluid, and the... COMSOL Conference 2009, Milan A. Montisci1 and R. Pintus1 1 Department of Electrical and Electronic Engineering, University of Cagliari, Cagliari, Italy
The aim of the poster is to present a coupled 2D mathematical model to predict the evolution of drug concentration - in the cornea and in the anterior chamber of the eye - when therapeutic lenses are used (Figure 1). The mathematical... COMSOL Conference 2012, Milan P. Silva1 , J.A. Ferreira2 , P. de Oliveira2 1 Coimbra Institute of Engineering, CMUC, Coimbra, Portugal 2 Department of Mathematics University of Coimbra, CMUC, Coimbra, Portugal
Ammonia separation from water by membrane contactor was simulated on transient state and compared with experimental data. Aqueous low concentrated solution of ammonium with high pH has been pumped inside the hydrophobic hollow fibers,... COMSOL Conference 2012, Milan E. Licon1 , S. Casas1 , A. Alcaraz1 , J.L. Cortina1 , C. Valderrama1 1 Universitat Politécnica de Catalunya, Barcelona, Spain
Electric Field Assisted Capillarity (EFAC) is a novel technique for the fabrication of hollow polymer microstructures. It has advantages over current methods as it is a single step process. Hollow microstructures have many uses in... COMSOL Conference 2012, Milan C. Tonry1 , M. K. Patel1 , C. Bailey1 , M. P.Y. Desmuliez2 , W. Yu3 1 Computational Mechanics and Reliability Group (CMRG), School of Computing and Mathematical Sciences, University of Greenwich, London, United Kingdom 2 Microsystems Engineering Centre (MISCEC, School of Engineering & Physical Sciences, Heriot Watt University, Earl Mountbatten Building, Edinburgh, United Kingdom 3 State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, China
The ampacity of a cable depends on the cross section of its conductor. When selecting a cable design for a specific application it is of interest to choose the lowest possible conductor cross section in order to reduce material costs.... COMSOL Conference 2012, Milan E. Pelster1 1 Wenger Engineering, Ulm, Germany
In this work, an electrostatic diaphragm micropump is investigated by means of COMSOL Multiphysics®. A fluid-dynamic model is adopted to evaluate the fluid flow characteristics inside the pumping chamber, in static conditions. In... COMSOL Conference 2009, Milan E. Bertarelli1 , R. Ardito1 , E. Bianchi1 , K. Laganà1 , A. Corigliano1 , G. Dubini1 , and R. Contro1 1 Department of Structural Engineering, Politecnico di Milano, Milano, Italy
In the developing embryo, neurons form connections by projecting axons to appropriate target areas. The projection process includes neurite elongation, resulting from the assembly of new cytoskeletal material at the free end of the axon,... COMSOL Conference 2012, Milan G. Naldi1 , G. Aletti1 , P. Causin1 1 Dipartimento di Matematica ‘F. Enriques’, Università degli Studi di Milano, Milano, Italy
Micro-grippers find applications in micro-robotics, microsurgery, micro-fluidics, micro-relays, assembling and miniature medical instrumentation. Actuation principle involved may be electrothermal, electrostatic, piezoelectric, shape... COMSOL Conference 2012, Bangalore T. Pahwa1 , S. Gupta1 , V. Bansal1 , R. Narwal1 , B. Prasad1 , D. Kumar1 1 Electronic Science Department, Kurukshetra University, Kurukshetra, India
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
The objective of this paper is to analyze the temperature variations within a superheater tube of a solar receiver steam generator. The tube is heated by concentrated, collimated solar irradiation with major cooling by an internal steam... COMSOL Conference 2012, Boston N. Lemcoff1 , S. Wyatt2 1 Rensselaer Polytechnic Institute, Hartford, CT, USA 2 Alstom Power, Windsor, CT, USA
Thermoelectric phenomena provide the direct conversion of heat into electricity or electricity into heat, the phenomena is described by three related mechanisms: the Seebeck, Peltier and Thomson effects. Thermoelectric devices have... COMSOL Conference 2011, Boston J. Crompton, S. Yushanov, L. Gritter, and K. Koppenhoefer AltaSim Technologies, LLC. Columbus, OH
The effects of electric fields on combustion flames have been studied by using several types of experimental techniques as well as few numerical methods. The flame is influenced by the electric field mainly due to the charges present as a... COMSOL Conference 2009, Bangalore S. Mitra1 , P. Sharma2 , M. Godbole2 , and M. Kumar KM2 1 Department of Mechanical Engineering, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India 2 GE Global Research, Bangalore, Karnataka, India
