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.

Upgrading the HFIR Thermal-Hydraulic Legacy Code Using COMSOL

I.T. Bodey[1], R.V. Arimilli[1], and J.D. Freels [2]
[1]The University of Tennessee, Knoxville, TN, USA,
[2]Oak Ridge National Laboratory, Oak Ridge, TN, USA

Modernization of the High Flux Isotope Reactor (HFIR) thermal-hydraulic (TH) design and safety analysis capability is an important step in preparation for the conversion of the HFIR core from a high enriched Uranium (HEU) fuel to a low enriched Uranium (LEU) fuel. Currently, an important part of the HFIR TH analysis is based on the legacy Steady State Heat Transfer Code (SSHTC). The SSHTC is a ...

Patient-specific Modelling of Blood-flow in Cerebral Aneurysms

D. Zajarias-Fainsod[1], M.J. Chappell[1], J.F. Collingwood[1], A. Rennie[2], S. Nagaraja[2], and A. Wilson[2]
[1]University of Warwick, Coventry, UK,
[2]University Hospital Coventry and Warwickshire NHS Trust, Coventry, UK

A first stage in this research was to determine the feasibility of patient-specific modelling and the use of in-silico techniques to study flow for the first time in the same vessels with and without an aneurysm. Three-dimensional renderings of the cerebral blood vessels were reconstructed from computed tomography angiograms of the head using MATLAB (The MathWorks) for image processing and ...

Parameter Optimization for FEM Based Modeling of Singlet Oxygen During PDT Using COMSOL

T.C. Zhu, and X. Liang
University of Pennsylvania, Philadelphia, PA, USA

Singlet oxygen (1O2) is the major cytotoxic agent in photodynamic therapy (PDT). The reaction between 1O2 and tumor cells defines the treatment efficacy. Based on a previously developed model that incorporates the diffusion equation for the light transport in tissue and the macroscopic kinetic equations for the generation of the singlet oxygen, the distance-dependent reacted 1O2 is numerically ...

Investigations on Natural Frequencies of Individual Spherical and Ellipsoidal Bakery Yeast Cells

M.M Zarandi[1], A. Bonakdar[1], and I. Stiharu[2]
[1]McGill University, Montreal, QC, Canada
[2]Concordia University, Montreal, QC, Canada

In this paper, a Finite Element (FE) and scaled-up experimental modal analysis are employed to estimate the natural frequencies of individual spherical and ellipsoidal cells. It is apparent that the mechanical properties of the living cells and particularly the natural frequencies might be related to the health condition of cells, and therefore a comprehensive analysis is carried out to determine ...

Microsoft Technical Computing - The Advancement of Parallelism

T. Quinn
Microsoft, USA

Tom Quinn works as a Partner Business Development Manager for Microsoft as part of its HPC team working together with ISV, OEM and SI partners, in the HPC marketplace. Before joining Microsoft, Mr. Quinn worked as the Director of Government Business Development for Linux Networx, a small/mid-sized company that provides Linux Clusters, and earlier as Director of Operations and Business ...

Acoustic streaming flows in discharge lighting

T. Dreeben
Osram Sylvania, Beverly, MA, USA

Thomas Dreeben received his B.A. in Philosophy and Mathematics in 1985, and his Ph.D. in Mechanical Engineering in 1997, both from Cornell University. He has worked in automotive fuel systems at Ford Motor Company, and in turbulence at Sandia National Laboratories. He currently works in lighting research at OSRAM SYLVANIA, where his modeling focuses on fluid mechanics and heat transfer as they ...

Using COMSOL for geophysics applications

M. McKenna
U.S. Army Engineer Research & Development Center, Vicksburg, MS, USA

Dr. McKenna is a Research Geophysicist at the U.S. Army Engineer Research and Development Center (ERDC). She directs the Denied Area Monitoring and Exploitation Systems working group at ERDC, which has ongoing integrated high performance computing modeling and experimental research with the Department of Defense, Department of Energy, Defense Intelligence Agency, Los Alamos National Laboratory ...

Finite element simulation for electronics

Y. Mizuyama
Panasonic Boston Laboratory, Newton, MA, USA

Dr. Yosuke Mizuyama is a Lead Engineer at Panasonic Boston Laboratory. He has been working on various electronics for Panasonic Corporation in Japan for many years. His research includes incandescent/fluorescent lamp, electrostatic/pzt inkjet, MEMS and BD/DVD/CD optical drive. His current interest is electromagnetic simulation for laser and optics. He has been engaged in numerical analysis using ...

Virtual Acoustic Prototyping – Practical Applications for Loudspeaker Development

A. Salvatti
JBL Professional, Northridge, CA, USA

The author presents an overview of methods to build virtual prototypes of both horns and loudspeaker drivers which allows a significant reduction in the number of physical prototypes, as well as reduced development time. This paper will present some of the practical results from work the author has performed in the course of designing both transducers and horns using COMSOL Evolution of the ...

Dielectric Stress and Coordination Study in the PAB72 High Voltage Circuit Breaker Interrupter

D. Andrade, and D. Schiffabuer
Pennsylvania Breaker LLC, Canonsburg, PA, USA

Pennsylvania Breaker presents a dielectric stress study for its 72kV class breaker. This study was instrumental in the design and testing procedures during the research and development phase. COMSOL was incorporated into the design pipeline as an important tool for rapid reference of complicated and costly steady state electric cases. The purpose of this study was to develop a robust geometric ...

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