Technical Papers and Presentations

Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

Multidimensional Modeling of a Toxical Molecule Formation during Food Frying

G. Carrieri, M. V. De Bonis, and G. Ruocco
CFDfood - DITEC, Università degli studi della Basilicata, Potenza, Italy

Heat related processing can have various effects on food and food ingredients. Besides the intended effects to improve safety and quality of the products, undesired changes, nutritional or toxicological, can also occur. In this area, acrylamide formation occupies an important role, as this molecule has been considered as a potential cause of cancer. The possibility that this molecule may be ...

Mathematical Modeling of Atheroma Plaque Deformation using COMSOL Multiphysics

N. El Khatib1, S. Genieys1, M. Zine2, and V. Volpert1
1Institut Camille Jordan, Université Claude Bernard, Lyon, France
2Département Maths & Informatique, Ecole Centrale de Lyon, Lyon, France

The development of atherosclerosis leads to the formation of an atheroma plaque which takes place in the artery. This plaque is composed of two parts: a lipid deposit and a fibrous cap. The fibrous cap covers the lipid deposit and isolates it from the blood flow. The blood flow that circulates in the artery modifies the geometry of the atheroma plaque and can cause dangerous effects, such as a ...

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 ...

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.

Analysis of a Spatial Filtering Design for Capacitive Flow Measurements

D. Hrach, A. Fuchs, and H. Zangl
Institute of Electrical Measurement and Measurement Signal Processing, Graz University of Technology, Graz, Austria

In this paper, a simulation of a capacitive flowmeter utilizing a spatial filtering technique is presented. The flowmeter consists basically of ring shaped electrodes placed sequentially in the flow direction on the outside of a pipe. The paper introduces an electrode layout and describes the modeling of the electrodes to achieve the required simulation accuracy.We show the functionality of the ...

Vibration Analysis - Gullfaks C Knock Out Drum

S. Sandström
SSM Engineering, Stenungsund, Sweden

An eigenvalue as well as a harmonic response analysis is performed on the Gullfaks C, Knock Out Drum (KOD) including some of the connecting pipe systems. The vibration behavior of two new choke valves and their specific connection to the KOD are of special interest. The main concern is the low frequency induced vibration as a consequence of the platform movements. A frequency band between 0-20 Hz ...

3D Finite Element Models of Ground Deformation and Stress Field in a Viscoelastic Medium

D. Scandura1,2, G. Currenti1, and C. Del Negro1
1Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania, Catania, Italy
2Dipartimento di Matematica e Informatica, Università di Catania, Catania, Italy

A 3D finite element model was used to evaluate the time dependent ground deformation and the stress change caused by a pressure source embedded in a viscoelastic medium. In volcanic areas, the presence of inhomo-geneous materials and high temperatures produce a lower effective viscosity of the Earth's crust which calls for consideration of the thermal regime of crustal volume surrounding the ...

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 ...

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