Artigos Técnicos e Apresentações

Aqui você encontrará apresentações realizadas nas Conferências de Usuários COMSOL de todo o mundo. As apresentações englobam pesquisas e produtos inovadores feitas por engenheiros e cientistas usando o COMSOL Multiphysics. Os tópicos abramgem uma grande gama de indústrias e aplicações, como elétrica, mecânica, escoamento e química. Use a função de busca "Quick Search" para encontrar apresentações na sua área de interesse.

Implementation of EC-NDT for in Depth Detection of Defects in Metallic Plates

M. Cacciola, S. Calcagno, D. De Carlo, F. Laganà, G. Megali, F. C. Morabito, D. Pellicanò, and M. Versaci
Department of Informatics, Mathematics, Electronics and Transportations (DIMET) - "Mediterrane" University of Reggio Calabria, Reggio Calabria, Italy

Eddy Current Non Destructive Testing is exploited to evaluate the structural integrity of metallic objects. The aim of this paper is to detect defects located in depth within the inspected object; within this framework, we studied the modelling of exciting coils useful to detect structural flaws. The simulations have been carried out by considering the movement of the coil over a structural steel ...

Electro-Mechanical Modeling of Excitable Soft Tissues

Luciano Teresi
Assistant Professor
School of Engineering
Università "Roma Tre"
Rome, Italy

Cardiac muscle exists in two forms: the contractile myocardium and specialized conducting cells that spread the wave of depolarization throughout the chambers of the heart. Action potentials are initiated in the sinoatrial (SA) node, which serve as the “pacemaker” of the heart. In this presentation, this is investigated thoroughly with different examples and simulated results of ...

Using COMSOL Multiphysics to Model Ground Heat Exchange

G. Jóhannesson
Div. of Building Technology, The Royal Institute of Technology, Stockholm, Sweden

In building physics it is a fact that a large part of the knowledge available from research is not applied in construction and design. The main reason for this is that the physics often include nonlinear field problems that are difficult to solve for the ordinary engineer. With a software that allows the combination of many different physics, the solvability of such problems increases.The ...

Numerical Simulation versus Experiments and Analytical Computation for Design Optimization

Mario Jungwirth
Professor
Upper Austria University of Applied Sciences
Wels, Austria

This presentation deals with how COMSOL Multiphysics can be used in education. The presentation is performed by demonstrating various multiphysics examples, their setup, modeling approach, and solution. ------------------------------------------- Keynote speaker's biography: Dr. Mario Jungwirth has been a professor at the Upper Austria University of Applied Sciences since 2003. In 2001, he ...

A non-Conventional use of COMSOL to Solve a Complex 3D Geometrical Problem

J. P. Caire, and F. Jomard
LEPMI, ENSEEG, Saint Martin d'Hères, France

The purpose of this study was the optimization of an industrial furnace from a thermal point of view. Such a cylindrical furnace contains an Al-Mg molten alloy covered by a KCl-NaCl molten salt layer floating on it to prevent alloy evaporation. When tilting the cylindrical furnace, it was necessary to compute the relation between the salt and alloy volumes and the area of the liquid alloy/salt ...

Modeling Solute in Clays at the Nanometric Scale Part I. Application to the Alcaline Series

N. Diaz1, F. Goutelard1, and P.Turq2
1CEA/DEN/DPC/SECR/L3MR, CEN Saclay, Gif-sur-Yvette, France
2LI2C, Université Pierre et Marie Curie, Paris, France

The argillite formation has been proposed as a potential host rock for deep radioactive waste disposal. These materials have very low permeability and diffusion is likely to be the predominant transfer mechanism for solute migration.The negatively charged surface of the clays induces unexpected behaviour of the ions: while the anions diffuse slower than HTO, the transport of the cations is ...

Effective Permittivity and Optical Properties of Photonic/Plasmonic Structures in Nanocomposite Glass

O. Kiriyenko, W. Hergert, S. Wackerow, and H. Graener
Institut für Physik, Naturwissenschaftliche Fakultät II, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany

In this presentation, we study the optical properties of different photonic structures.

Cross Method of Nanoscale Modeling and Macroscopic Data to Estimate Anion Effective Diffusion Coefficient in Argillite

N. Diaz1, F. Goutelard1, and P.Turq2
1CEA/DEN/DPC/SECR/L3MR, CEN Saclay, Gif-sur-Yvette, France
2LI2C, Université Pierre et Marie Curie, Paris, France

Based on a mechanistical understanding of solute migration in pure clay at nanometric scale, a model has been developed to evaluate the effective diffusion coefficient De in clay-rocks at the centimetre scale from the description of the mineralogy (and its heterogeneity) of the rock at the micrometer scale.

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