Veröffentlichungen und Präsentationen

Hier finden Sie Veröffentlichungen und Präsentationen der weltweit stattfindenden COMSOL-Konferenzen. In diesen präsentieren Ihre Fachkollegen ihre neuesten mit COMSOL Multiphysics entwickelten Produkte und Ideen. Die Forschungsthemen umfassen ein weites Feld von Industrien und Anwendungsbereichen, die von Mechanik und Elektronik über Strömungen bis zur Chemie reichen. Nutzen Sie die Quick Search, um die zu Ihrem Forschungsbereich passenden Präsentationen zu finden.

Energy Transformation Damping

G.S. Mulder[1]
[1]Leiden, The Netherlands

A model for material damping is presented in terms of internal friction and in terms of a variation of stiffness. In the latter case the idea is that the stiffness increases if elastic energy is stored and decreases if elastic energy is released. In case of a single mass spring system “stiffness” refers to the stiffness of the spring; in case of a continues object ...

Using COMSOL Multiphysics in Advanced Engineering

Advanced Computational & Engineering Services
Columbus, Ohio

In this presentation we give a thorough introduction to advanced engineering using COMSOL Multiphysics. We introduce you to many disciplines of engineering and physics as well as multidisciplinary, multiscaled multiphysics.

Estimation of Boundary Properties Using Stochastic Differential Equations and COMSOL

A. Atalla[1], and A. Jeremic[1]
[1]McMaster University, Hamilton, Ontario, Canada

The inverse diffusion problems deal with the estimation of many crucial parameters such as the diffusion coefficient, source properties, and boundary conditions. Such algorithms are widely applied in many design problems in different physical, chemical, and biological fields. Recently, the estimation of the boundary properties, of the diffusion process, have attracted researchers. We first ...

Influence of Geometry on Mixing in a Passive Micromixer

E. Giuri, A. Ricci, and C. Ricciardi
Laboratorio di Technologie Elettrobiochimiche Miniaturizzate per l'Anilisi e la Ricerca, Politechnico di Torino

Finite Element Method simulations of microstructure behaviour is carried out by COMSOL. This enables us to make also technological considerations related to the easy way of fabrication and to lower production costs as explained in the following slide.

Wireless Interaction of Neighboring Two Arm Archimedes Spiral Coils in the RF Electromagnet Range

A. Kalinowski[1]
[1]Naval Undersea Warfare Center/ Division Newport, Newport, RI, USA

The paper addresses a class of problems for modeling and consequently simulating the electromagnetic field radiation pattern from two arms Archimedes spiral coils. The frequency spatial wavelengths relative to the coil dimensions are in a range where the electromagnetic Maxwell’s equations are solved numerically via the RF Module of COMSOL ...

Untersuchung der Polarisationseigenschaften einer mikrostrukturierten optischen Faser unter dem Einfluss äußerer Belastung

A. Unger[1], and K.H. Witte[2]
[1] FH-Wiesbaden, Fachbereich Physikalische Technik, Rüsselsheim;
[2] FH-Wiesbaden, Fachbereich Elektrotechnik, Rüsselsheim

Mit Hilfe des Softwareprogramms COMSOL zur Modellierung physikalischer Vorgänge wurden die Polarisationseigenschaften einer mikrostrukturierten Singlemodefaser untersucht. Ausgangspunkt der Simulationen waren experimentelle Untersuchungen, nach denen diese Faser eine ungewöhnlich starke Doppelbrechung aufwies. Die Doppelbrechung der Faser und damit ihre Fähigkeit zur Polarisationserhaltung ...

Study of a Silicon Photodetector Thermal Stabilization using a Peltier Cell

E. Foschi1, C. Guandalini2, G. Levi1, L. Quadrani1, C. Sbarra 1,3, and M. Zuffa2
1Department of Physics, University and INFN, Bologna, Italy
2INFN, Bologna, Italy
3Centro Studi e Ricerche E.Fermi, Roma, Italy

In recent years, a new type of silicon photon detection devices (SiPM) has been developed. These devices have advantages in comparison to normal photomultiplier tubes (PMT), but being made by an array of avalanche photo diodes operated in Geiger mode, they are much more sensitive to temperature changes than standard PMTs. Typical SiPM gains vary from 3 to 5 percent per degree Centigrade. In space ...

Transport in reactive porous media containing biofilms

G. Debenest, Y. Aspa, and M. Quintard
IMFT, GEMP group, Toulouse, France

The objective of this presentation is the evaluation of effective bulk transport properties of reactive porous biofilm. We present our microscale model that accounts for both momentum and mass balances.

Benchmark between CPO (Charged Particle Optics) and COMSOL Multiphysics

J.-M. Barois, and C. Goulmy
PHOTONIS, Brive, France

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 second-to-none.Applications are numerous and range from plasma physic to femtosecond laser applications. In streak tubes, electrons move from the photocathode to the ...

Estimating Cerebral Blood Flow using Electro-mechanical Modeling and Impedance Tomography Measurements

A. Jeremic, and T. Gadkari
McMaster University, Hamilton, ON, Canada

In this paper we propose a coupled electromechanical finite element model which combines the Navier-Stokes Equations of blood flow in an immersed boundary and the resulting deformed geometry with an electromagnetic model, which describes the electric field in the presence of deformation/structure changes caused by the blood flow in arteries.We derive least-squares estimates of the pressure drop ...

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