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.

FEMLAB as a general tool to investigate the basic laws of physics

Bräuer, K.
Universität Tübingen, Inst. f. Theoretische Physik, Tübingen

The common basis of physical laws is the continuity of the action field. It implies Structural mechanics, Hydrodynamics, Quantum mechanics, Electrodynamics and the self-organisation of matter. A general tool to investigate all the basic equations is FEMLAB. In academic training it allows to take the concentration away from the manifold of mathematical methods of solutions and draw it to the real ...

Modeling dynamic of composite plate with PZT patches embedded by using FEMLAB3.1

Wang, J.
Mads Clausen Institute, University of Southern Denmark

As an important part of the smart/intelligent structures, the composite plate with piezoelectric-ceramics (PZT) patches embedded has numerous values in many engineering applications, such as: aerospace, automotive, civil and mechanical engineering. A composite thin plate excited by PZT actuators is considered in this work. To describe the dynamic response of the quadrate plate clamped at its ...

Computer Simulations of Flows in Curved Tubes with Stenosis

Liu, B.
Department of Mathematics, Monmouth University, West Long Branch, NJ

Pulsatile blood flows in curved atherosclerotic arteries are investigated by computer simulations. Three-dimensional incompressible Navier Stokes equations are solved using FEMLAB. The flexibility of FEMLAB enables us to do the computations with various flow parameters and different boundary conditions at the outlet. This paper presents the blood flow patterns in the curved arteries with or ...

Multiphysics for Life Sciences and Health Care: Simulation Examples

Glière, A., Gros d’Aillon, E., da Silva, A.
LETI – CEA Direction de la Recherche Technologique, PA

Numerical simulation, especially by the Finite Element Method, is widespread in research and development laboratories. Three examples of the use of FEMLAB, in fields as diverse as gamma-ray detection by room-temperature semiconductors, fluorescence-enhanced Diffuse Optical Tomography and microfluidic valve for Lab-on-a-Chip, are presented in this paper.

Accelerated Virus Capture to Surfaces Inside Physiological Media by using AC Electrokinetic Effects

Zhang, B., Docoslis, A
Department of Chemical Engineering, Queen’s University, Kingston, ON Canada

This paper presents a numerical investigation of the mechanism by which nonuniform electric fields, created by planar microfabricated electrodes, can cause accelerated transport and capture of virus to a surface inside media of physiological ionic strength. Numerical calculations presented here suggest that the primary mechanism of expeditious virus transport from the bulk of a sample to the ...

Calibrating electric instruments of the Huygens probe and modelling the dielectric properties of the atmosphere and of the surface of titan

Simões, F.
Centre d'Etude des Environnements Terrestre et Planétaires (CETP), Saint Maur des Fossès, France

In 14 January, 2005, the Huygens Probe has descent through the atmosphere of Titan and has survived to touchdown, collecting data in the atmosphere and on the surface of the largest moon of Saturn. One of the instruments, the Huygens Atmospheric Structure Instrument (HASI), includes the Permittivity, Waves, and Altimetry (PWA) analyser, which is a subsystem for studying the electric activity of ...

Simulation of electrokinetic instabilities using COMSOL Multiphysics

Carl Meinhart
University of California Santa Barbara
Santa Barbara, USA

This presentation shows a number of models of electrokinetic behaviour, each differentiated by a specific assumption. The purpose is to show how such assumptions can lead to varying results in elektrokinetic simulations. --------------------------------- Keynote speaker's biography: Professor Meinhart completed his Ph.D and Postdoctoral work at the University of Illinois in June of 1995. At ...

A finite–element simulation study of the complex effective permittivity of two-phase random composite materials

Brosseau, C.
Laboratoire d'Electronique et Systèmes de Télécommunications, Université de Bretagne Occidentale, Brest, France

In the current work we introduce a finite-element method (FEM) for calculating the effective permittivity of macroscopically inhomogeneous media. Specifically, we consider two-dimensional (2d) two-phase heterostructures consisting of hard circular disk equilibrated distributions. The hard-disk distribution has been chosen as the reference system since it is one of the simplest idealized models ...

A finite–element simulation study of the complex effective permittivity of two-phase random composite materials

Brosseau, C.
Laboratoire d'Electronique et Systèmes de Télécommunications, Université de Bretagne Occidentale, Brest, France

In the current work we introduce a finite-element method (FEM) for calculating the effective permittivity of macroscopically inhomogeneous media. Specifically, we consider two-dimensional (2d) two-phase heterostructures consisting of hard circular disk equilibrated distributions. The hard-disk distribution has been chosen as the reference system since it is one of the simplest idealized models ...

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