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.

CFD Analysis of Loss Of Vacuum Accident for Safety Application in Experimental Fusion Reactor Facility

C. Bellecci[1], P. Gaudio[1], I. Lupelli[1], A. Malizia[1], M.T. Porfiri[2], R. Quaranta[1], and M. Richetta[1]

[1]EURATOM, Faculty of Engineering, University of Rome “Tor Vergata”, Roma, Italy
[2]ENEA Nuclear Fusion Tecnologies, Frascati, Roma, Italy

In an experimental nuclear fusion facility dust is generated both during normal machine operations and by macroscopic erosion of the plasma facing materials due to intense thermal loads. This dust can be mobilized by air ingress in case of LOVA (Loss of Vacuum Accident) threaten safety of workers and public. A small facility, Small Tank for Aerosol Removal and Dust (STARDUST), was set up in ...

The Optical Properties of a Truncated Spherical Cavity Embedded in Gold

A. Pors[1], O. Albrektsen[2], S.I. Bozhevolnyi[2], and M. Willatzen[1]
[1]Mads Clausen Institute, University of Southern Denmark, Sønderborg, Denmark
[2]Institute of Sensors, Signals and Electrotechnics, University of Southern Denmark, Odense, Denmark

The use of plasmonic effects to dramatically enhance the electromagnetic field near the surface of a metallic nanostructured surface has grown into a large research area in the effort to take advantage of the surface enhanced field. In this paper the electromagnetic field near a nano-sized truncated spherical cavity embedded in a gold substrate is investigated and modeled in 3D with COMSOL ...

Effects of the Film Thickness on the Transient Conjugate Opticalthermal Fields in Thin Films Irradiated by Moving Sources in Back and Front Treatments

N. Bianco[1], O. Manca[2], S.Nardini[2], and D. Ricci[2]

[1]DETEC, Università degli Studi di Napoli Federico II, Napoli, Italy
[2]DIAM, Seconda Università degli Studi di Napoli, Aversa, CE, Italy

A two dimensional transient analysis of the conjugate optical-thermal fields induced in a multilayer thin film structure by a moving Gaussian laser source is carried out numerically in order to compare back and front laser treatment processes. Thermal and optical nonlinearity is induced during transient heating, since the response of weakly absorbing thin films depends on temperature. The heat ...

Passive and Active Deformation Processes of 3D Fibre-Reinforced Caricatures of Cardiovascular Tissues

A. Di Carlo[1], P. Nardinocchi[2], T. Svaton[3], and L. Teresi[1]

[1]Modelling and Simulation Lab, Università Roma Tre, Roma, Italy
[2]Dept. of Structural & Geotechnical Engineering, Università di Roma La Sapienza, Roma, Italy
[3]Dept. of Mathematics, University of West Bohemia, Pilsen, Czech Republic

In this paper, we present a mathematical model of contractile elastic solids meant to simulate various districts of the cardiovascular system, and based on the concepts of active deformation and embedded muscle fibres. Specifically, here we deal with the modeling of the gross mechanics of the Left Ventricle (LV) which is strictly related to its pump function. As is well known, the effectiveness ...

Simulation of Electromagnetic Enhancement in Transition Metamaterials using COMSOL

I. Mozjerin[1], T. Gibson[1], and N.M. Litchinitser[1]
[1]Department of Electrical Engineering, The State University of New York at Buffalo, Buffalo, New York, USA

Metamaterials are a new class of artificial materials, which possess various unusual properties. One of these properties is a negative index of refraction produced by setting both the dielectric permittivity ε and the magnetic permeability μ of the material less than zero. Unique electromagnetic phenomena occurring at the interface between negative-index materials and conventional ...

Supercritical CO2 Leakage Modelling for Well Integrity in Geological Storage Project

E. Houdu, O. Poupard, and V. Meyer
OXAND S.A., France

CO2 capture and storage constitutes a promising solution to control and reduce these emissions. Wellbore integrity is a key challenge to ensure long term safety and for public acceptance. For this objective, a two-phase flow model in porous media based on Darcy’s law has been proposed to simulate the CO2 leakage within the well at a rat hole area. The numerical simulations have highlighted ...

Three-Dimensional Simulation of Signal Generation in Wide-Bandgap Semiconductor Radiation Detectors

J. E. Toney[1]
[1]Pennsylvania State University Electro-Optics Center, Freeport, Pennsylvania, USA

We demonstrate the use of Comsol Multiphysics with Matlab to model signal generation in wide-bandgap semiconductor radiation detectors. A quasi-hemispherical detector design is compared with a simple, planar detector. Results show that the quasi-hemispherical design can simply and effectively compensate for the poor hole transport of most compound semiconductor materials.

Effect of Antennae Polarization Relative to Tunnel Orientation on Electromagnetic Wave Scattering due to Underground Tunnels

A. Farid[1], and T. Raza[1]
[1]Civil Engineering, Boise State University, Boise, Idaho, USA

Illegal immigrants and smugglers frequently use underground tunnels to avoid border security and checkpoints. In addition, the threat of international terrorism has recently made the effort to detect tunnels a national security priority. No single technology and sensing modality is capable of detecting tunnels in all heterogeneous soils environments. The goal of this research is to study and ...

Advanced simulation in medicine and biology: Opportunities for multiphysics modeling

S. Conrad
Louisiana State University, Health Sciences Center, Shreveport, LA, USA

Steven Conrad received his MD degree from Louisiana State University in 1978, and his PhD degree in Biomedical Engineering from Case Western Reserve University in 1985. His clinical practice includes intensive care and emergency medicine, and his research interests include computational dynamics and bioinformatics. He has worked with dynamic models of gas transport in artificial lungs, and more ...

Fibre-Optic Microsensor Based on Surface Plasmon Resonance in a Microfluidic Cell : An Experimental and Numerical Multiphysics Approach

G. Louarn, T. Makiabadi, V. Le Nader, and M. Kanso
Institut des Matériaux Jean-Rouxel (IMN), CNRS- Université de Nantes, France

In the last decade, the surface plasmon resonance (SPR) has become a very sensitive technique for real-time detection in many application areas. Considering the fiber optic concept and the important needs for analyzing biomolecular reactions through automated and miniaturized components, fiber optic sensors based on the SPR technique are becoming an important choice in the field of sensing. In ...

2751 - 2760 of 3394 First | < Previous | Next > | Last