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.

A Model for High Temperature Inductive Heating

S.A. Halvorsen[1]
[1]Teknova AS, Kristiansand, Norway

COMSOL Multiphysics has been applied to develop a model for inductive heating. A coarse, lumped model of the interior of a high temperature reactor is coupled to finite element models for the electromagnetic field, the temperature distribution outside the reactor, and mechanical stresses in the crucible. The model can be applied to study operational conditions, thermal stresses, or design ...

Dynamic Electromagnetic Analysis of Guitar Pickup Aided by COMSOL Multiphysics

T. Furukawa[1], H. Tanaka[2], H. Itoh[1], H. Fukumoto[1], M. Ohchi[2]
[1]Saga University, Saga City, Saga, Japan
[2]Chiba Institute of Technology

In transient analyses of electromagnetic fields with moving media, it is difficult to grasp the phenomena theoretically in the same manner of the convective heat diffusion since the treatment of the coupled problem with the field and dynamics must be necessary. In this presentation, we illustrate the dynamic magnetic flux patterns in the electric guitar pickup, where the string will move over ...

Finite Element Analysis of Defibrillation Current Density in Pregnant Women

A. Jeremic[1], E. Khosrowshahli[1]
[1]McMaster University, Hamilton, ON, Canada

Although resuscitation during pregnancy is relatively uncommon and rarely causes death, they have a particularly large impact in terms of the mortality of the unborn child and long-term effects on families and society as whole. In this paper, we present a new 3D finite element model of a pregnant female torso which accounts for presence of amniotic liquid and calculate current density ...

Modeling the ELENA Electron Cooler with COMSOL Multiphysics® Software - new

G. Tranquille[1]
[1]CERN, Geneva, Switzerland

ELENA is a small cooler decelerator ring at CERN which will be built to increase substantially the number of usable antiprotons delivered to experiments for studies with antihydrogen and antiprotonic nuclei. COMSOL Multiphysics® software has been used to completely model the ELENA electron cooling device in 3D. We have taken advantage of the different physics-based modules of COMSOL ...

Electromagnetic Processing from AC to DC Field and Multiphysics Modeling: a Way for Process Innovation

M. Dumont [1], R. Ernst [2], Y. Fautrelle [2], J. Etay [2]
[1] Emdpi Solutions-JAM, France
[2] Simap, France

Examples of Electromagnetic processes are presented: (1) cold crucible, (2) electromagnetic pump, (3) DC electromagnetic brake. A combined approach by using multiphysics modeling with Comsol and experimental validation is used in order to give some guidelines for process improvement and integration at industrial scale. A time-dependent 2D or 3D multiphysics electromagnetic fluid mechanics ...

Simulating Superconductors in AC Environment: Two Complemetary COMSOL Models

R. Brambilla[1] and F. Grilli[2]
[1]ENEA - Ricerca sul Sistema Elettrico S.p.A., Milano, Italy
[2]Karlsruhe Institute of Technology, Karlsruhe, Germany

In this paper we present a summary of our work on numerical modeling of superconductors with COMSOL Multiphysics®. We discuss the two models we utilized for this purpose: a 2-D model based on solving Maxwell equations and a 1-D model for thin conductors based on solving the integral equation for the current density distribution. The latter is useful for modeling second generation High ...

Magnetic Stimulation of the Human Brain with Low-Intensity Field

D. Lazutkin[1], A. Harkara[2], and P. Husar[1]
[1]Ilmenau University of Technology, Ilmenau, Thuringia, Germany
[2]Simpleware Limited, Exeter, Devon, United Kingdom

The most popular means of depression treatment are psychotherapy, antidepressant medication and recently adopted transcranial magnetic stimulation (TMS) of the human brain. To overcome their disadvantages we are investigating an application of low-field magnetic stimulation (LFMS) to depression treatment. The 3D electromagnetic model of LFMS has been developed. It employs 8 small coils disposed ...

Using COMSOL Multiphysics for Designing a Hybrid Electromagnetic Launcher

R. Kroczek, and J. Domin
Silesian University of Technology, Gliwice, Poland

This paper describes consecutive stages of design and construction of electromagnetic gun manufactured at the Silesian University of Technology. It gives insight into current knowledge about such a launcher. The computer model was elaborated in COMSOL Multiphysics version 3.5. The numerical analysis was carried out a 3-dimensional space. The physical model was build up and comparison of the ...

Numerical Study of a DC Electromagnetic Liquid Metal Pump: Limits of the Model

N. Kandev[1]
[1]Institut de recherche d'Hydro-Québec, Shawinigan, QC, Canada

This work presents the results of a 3D numerical magneto-hydrodynamic (MHD) simulation of an electromagnetic DC pump for liquid metal using a rectangular metal flow channel subjected to an externally imposed transversal inhomogeneous magnetic field. In this study. 3D numerical simulation based on the finite element method was carried out using the computer package COMSOL Multiphysics 3.5a. The ...

Computational Modeling of the Electrohydrodynamics Influencing Trace Mercury Adsorption within Electric Utility Electrostatic Precipitators

H. Clack[1]
[1]University of Michigan, Ann Arbor, MI, USA

Anthropogenic mercury (Hg) emissions increase the risk of neurological and neonatal health effects in humans through fish consumption. There are several technological approaches to controlling mercury emissions from coal combustion, including the injection of a powdered mercury sorbent into the flue gas upstream of the particulate control device (PCD). As most PCDs are electrostatic ...