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Voyez comment la modélisation et la simulation sont utilisées par les industries La modélisation et la simulation multiphysiques pilotent l'innovation dans tous les grands secteurs d'activité et dans le monde universitaire — comme en témoignent les nombreuses utilisations présentées dans des articles et des posters techniques présentés par des ingénieurs, chercheurs et scientifiques à la Conférence COMSOL chaque année. Inspirez-vous des récents proceedings réunis ci-dessous, ou, pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt, utilisez la recherche rapide.

Consultez les proceedings de la Conference COMSOL 2024

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Calculation of Cable Parameters for Different Cable Shapes

H. Lorenzen[1], J. Timmerberg[1], and S. Mylvaganam[2]
[1]Department of Electrical Engineering, UAS OOW, Wilhelmshaven, Germany
[2]Department Technology/Engineering, Telemark University College, Porsgrunn, Norway

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 lines are calculated. In the process of estimation, the ... En savoir plus

The Fast Model for Ionic Wind Simulation

A. Samusenko[1], Yu. Stishkov[1], P. Zhidkova[1]
[1]Saint Petersburg State University, Research and Educational Center “Electrophysics”, St Petersburg, Russia

Ionic wind is the gas flow induced by the corona discharge. Ions produced by corona are accelerated by electric field and transfer their momentum to neutral molecules. Using ionic wind one can convert electric energy to kinetic energy of air flow almost directly. The phenomenon of ionic ... En savoir plus

Development of Stress Relief Suspensions for Micro-Machined Silicon Membranes

W. Kronast[1], U. Mescheder[1], B. Müller[1]
[1]Hochschule Furtwangen, Furtwangen, Germany

A new design concept for large (6 mm diameter) dynamically focusing silicon membrane mirrors using electrostatic actuation was realized. With this concept membrane buckling by residual compressive stress inside the membrane can be avoided. To eliminate the influence of residual stress ... En savoir plus

Modeling and Characterization of Superconducting MEMS for Microwave Applications in Radioastronomy

N. Al Cheikh[1], P. Xavier[1], J. Duchamp[1], and K. Schuster[2]
[1]Institute of Microelectronics, Electromagnetism and Photonics (IMEP-LAHC), Grenoble, France
[2]Institute of Millimetrics Radio Astronomy (IRAM), Grenoble, France

Superconducting GHz electronics circuits are frequently used in Radio Astronomy instrumentation. The features of these instrumentations can be significantly improved by using tuneable capacitances, which can be realized by electrically actuated, micromechanical bridges (MEMS) made of ... En savoir plus

Screening Effects in Probing the Electric Double Layer by Scanning Electrochemical Potential Microscopy

R.F. Hamou[1], P.U. Biedermann[1], A. Erbe[1], and M. Rohwerder[1]
[1]Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, Germany

A computational method is developed to study probing the electric double layer by Scanning Electrochemical Potential Microscopy. The model is based on a modified Poisson- Boltzmann equation, which takes into account steric effects. We investigated the effect of metallic apex protrusion ... En savoir plus

Tunable MEMS Capacitor for RF Applications

H. S. Shriram[1], T. Nimje[1], D. Vakharia[1]
[1]BITS Pilani, Rajasthan, India

Radio Frequency MEMS devices have emerged to overcome the problem of high losses associated with semiconductors at high frequencies. A tunable MEMS capacitor is a micrometre-scale electronic device whose capacitance is controlled through different actuation mechanisms which govern the ... En savoir plus

Modeled Electroformed MEMS Variable Capacitors for Cobalt Iron Alloy Magnetostriction Measurements

E. Langlois [1], P. Finnegan [1], J. Pillars [1], T. Monson [1], C. J. Pearce [1], C. St. Johns [1], M. Ballance [1]
[1] Sandia National Laboratories, Albuquerque, NM, USA

Electroplated CoFe alloys demonstrating Joule magnetostriction (i.e., a large change in material shape induced by an applied magnetic field) have been recently developed for the creation of microfabricated magnetoelastic resonators for tagging applications. This development requires a ... En savoir plus

Study of the Optical Field Scattering Enhancement on a 2D Rough Surface Using COMSOL Multiphysics®

P. de Carvalho Gomes [1], P. Goldberg Oppenheimer [1]
[1]School of Chemical Engineering, University of Birmingham, UK

Surface Enhanced Raman Scattering (SERS) phenomenon is well known for its detection sensitivity, however, to better understand how it works a better insight needs to be developed on the physics behind the phenomenon. The physical aspects known to produce SERS effect are the use of ... En savoir plus

Quasielectrostatic Induction on Stationary Vehicles under High Voltage Power Lines

J. Leman[1]
[1]POWER Engineers, Hailey, ID, USA

The National Electrical Safety Code (NESC) requires that high voltage power lines in the U.S. be designed to limit electrostatic effects on nearby equipment. An example is that of a large vehicle underneath a transmission line. The tires insulate the vehicle’s body from ground. If a ... En savoir plus

3D-Simulation of Action Potential Propagation in a Squid Giant Axon

R. Appali[1], S. Petersen[1], J. Gimsa[2], and U. Rienen[1]
[1] Institute of General Electrical Engineering, Chair of Electromagnetic Field Theory, University of Rostock, Germany
[2] Institute of Biology, Chair of Biophysics, University of Rostock, Germany

Study of neurons plays a key role in the fields of basic and medical research aiming at the development of electrically active implants. The Fitzhugh-Nagumo equations are used to model and simulate the spike generation and propagation in a squid giant axon using COMSOL Multiphysics® 3.5a ... En savoir plus

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