We present COMSOL-based analyses and design optimizations of a micromachined wind sensor. The sensor relies on eight germanium thermistors embedded in a thin silicon nitride membrane, where two orthogonally arranged ensembles, each... COMSOL Conference 2011, Stuttgart A. Talic1 , S. Cerimovic2 , M. Mutapcic2 , R. Beigelbeck1 , and F. Keplinger2 1 Institute for Integrated Sensor Systems, Austrian Academy of Sciences, Wiener Neustadt, Austria 2 Institute of Sensor and Actuator Systems, Vienna University of Technology, Vienna, Austria
A fuel cell is an electrochemical system, which converts chemical energy into electricity by a controlled reaction of hydrogen and oxygen. The performance of the electrode is likewise determined by its material and the... COMSOL Conference 2011, Stuttgart A. Häffelin, J. Joos, M. Ender, A. Weber, and E. Ivers-Tiffée Institut für Werkstoffe der Elektrotechnik (IWE) Karlsruher Institut für Technologie (KIT) Karlsruhe, Germany
The simulation of heat and moisture transfer represents an essential resource in designing energy efficient buildings. In this paper a time-dependent wall model, consisting of several homogeneous domains, with third-type boundary... COMSOL Conference 2011, Stuttgart M. Bianchi Janetti, and F. Ochs University of Innsbruck Unit Building Physics Innsbruck, Austria
The geometrical design and material choice for a refractory lining requires a good understanding of its thermo-mechanical behavior. Design engineers clearly need a tool for fast and efficient computation of thermo-mechanical state of... COMSOL Conference 2011, Stuttgart Y. Kaymak VDEh Betriebsforschungsinstitut GmbH Düsseldorf, Germany
This paper gives an introduction to a continuing study detailing the process and development of using both experimental and Finite Element Analysis to characterise the acoustic response of a Carbon Fiber Reinforced Plastic (CFRP) laminate... COMSOL Conference 2011, Stuttgart J. O'Donnell, and G. McRobbie University of the West of Scotland Paisly, United Kingdom
The authors present a closer look on the Single-Well Injection-Withdrawal Experiment (SWIW) or Push-Pull Experiments and its ability to determine the groundwater velocity, as one of the major parameters concerning reservoir management and... COMSOL Conference 2011, Stuttgart F. Maier1 , K. Hebig2 , Y. Jin1 , and E. Holzbecher1 1 Georg-August Universität Göttingen, Göttingen, Germany 2 Technical University Berlin, Berlin, Germany
Impact monitoring has been extensively studied by several researchers and it has been shown that damage extent can be correlated with the impact magnitude. In order to make the process cost-effective, simulation of the impact has been... COMSOL Conference 2011, Stuttgart C. Yang, M. A. Torres-Arredondo, and C.-P. Fritzen Institute of Mechanics and Control Engineering Mechatronics University of Siegen Siegen, Germany
This work presents a different use of COMSOL as an integrated component of a computational tool framework used to automate designs creation. CNS-Burst is a computational synthesis method that has been implemented with the aim of... COMSOL Conference 2011, Stuttgart F. Bolognini University of Cambridge Cambridge, UK
In this paper we introduce a elastic and hyperelastic model to describe the pressure dependent material stress in joint cartilage. We used the pressure dependent E-modulus E = f(s) to calculate the material stress. E = f(s) is a degree 4... COMSOL Conference 2011, Stuttgart T. Reuter, and M. Hoffmann fzmb GmbH Research Centre of Medical Technology and Biotechnology Bad Langensalza, Germany
In this paper we introduce a elastic and hyperelastic model to describe the biomechanics of joint cartilage. As biomechanical property we calculated the pressure dependent E-modulus E = f(s) to describe the dependence of the biomechanical... COMSOL Conference 2011, Stuttgart T. Reuter, and M. Hoffmann fzmb GmbH Research Centre of Medical Technology and Biotechnology Bad Langensalza, Germany
An axially symmetric multiphysics model for industrial induction furnaces has successfully been converted from COMSOL Multiphysics version 3.5a to version 4.2. The model combines computation of magnetic fields, heat transfer and thermal... COMSOL Conference 2011, Stuttgart S. A. Halvorsen, and N. Kleinknecht Teknova AS Kristiansand, Norway
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
This paper presents a study on the propagation modes of electromagnetic waves through a step index fiber optics. To analyze the propagation of electromagnetic field, a simulation in Comsol 4.0 has been implemented using two different... COMSOL Conference 2011, Stuttgart I. Avram, and I. Gavril Tarnovan The Technical University of Cluj Napoca Cluj, Romania
This paper presents a snap shot of experimental work, which has been conducted at NTNU on billet heating with induction coils. A significant volume of experimental data have been collected for coils running with up to 0.2T: high... COMSOL Conference 2011, Stuttgart M. W. Kennedy, S. Akhtar, J. A. Bakken, and R. E. Aune Norwegian University of Science and Technology (NTNU) Trondheim, Norway
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
A resonant MEMS sensor for viscosity and mass density measurements of liquids was modeled. The device is based on Lorentz-force excitation and features an integrated piezoresistive readout. The core sensing element is a rectangular... COMSOL Conference 2011, Stuttgart S. Cerimovic1 , R. Beigelbeck2 , H. Antlinger3 , J. Schalko2 , B. Jakoby3 , and F. Keplinger1 1 Institute of Sensor and Actuator Systems, Vienna University of Technology, Vienna, Austria 2 Institute for Integrated Sensor Systems, Austrian Academy of Sciences, Wiener Neustadt, Austria 3 Institute for Microelectronics and Microsensors, Johannes Kepler University Linz, Linz, Austria
Metal honeycombs are used as catalyst supports. They can be considered as complex fins for heat exchange. A simple heat transfer model was compared with 2D simulations using COMSOL Multiphysics. There was a good correlation when the fluid... COMSOL Conference 2011, Stuttgart P. Gateau1 , P. Namy2 , and N. Huc3 1 SAS SYNGAS, rue du camp d’aviation, 44320, Saint Viaud, France, paul.gateau@syngas.eu 2 SIMTEC, 8 rue Duploye, 38100, Grenoble, patrick.namy@simtecsolution.fr 3 COMSOL FRANCE, WTC, 38000, Grenoble, nicolas.huc@comsol.fr
The effect of the infinite length approximation on evaluating the temperature of the surface of Borehole Heat Exchangers is determined by means of COMSOL Multiphysics. In detail, two 2D models of a BHE are compared: in the first model,... COMSOL Conference 2011, Stuttgart A. Priarone1 , and S. Lazzari2 1 DIPTEM-TEC, Università di Genova, Genova, Italia; Corresponding Author: a.priarone@unige.it 2 DIENCA, Università di Bologna, Bologna, Italia
The efficiency of borehole heat exchangers (BHEs) for geothermal purposes depends not only on material properties but also on their geometrical design. These days most used design consists of two parallel arranged U-shaped pipes which are... COMSOL Conference 2011, Stuttgart P. Oberdorfer, F. Maier, and E. Holzbecher Applied Geology Geoscience Centre Georg-August-University Göttingen Göttingen, Germany
Dielectrophoresis is a method for cell manipulation in miniaturized devices exploiting the dielectric properties of cells and/or cellular aggregates suspended in a fluid and subjected to a high-gradient electric field. The mathematical... COMSOL Conference 2011, Stuttgart S. Burgarella1 , F. Maggioni2 , and G. Naldi2 1 STMicroelectronics, Agrate Brianza, Milan, Italy 2 Department of Mathematics, University of Milan, Milan, Italy
