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.

Constructal Design of Concurrent Power Distribution Networks

A.M. Morega[1], and J.C. Ordonez[2]
[1] Department of Electrical Engineering, POLITEHNICA University of Bucharest, Romania
[2] Department of Mechanical Engineering and Center for Advanced Power Systems, Florida State University

This paper reports a strategy to design a network of higher immunity and capacity of recovery to faults or other destructive events. The capacity of survivorship and recovery increases when the system possesses some redundancy, and this means sources and lines and switching capability that are able to take over areas that loose connectivity to their parent source. Therefore, a second network, ...

Applying Grain Continuum Models to Stress Induced Grain Evolution in Next Generation Integrated Circuit Interconnects

D.N. Bentz, M. Bloomfield, J-Q. Lu, R.J. Gutmann, and T.S. Cale
Focus Center—New York, Rensselaer: Interconnects for Hyperintegration

We discuss the use of 3D grain continuum modeling to study grain boundary migration driven by differences in strain energy density. COMSOL Multiphysics is used to compute stresses and strain energy densities in polycrystalline structures caused by temperature changes. The grain boundary speeds are computed using a simple model that relates them to grain boundary mobility and differences ...

Modelling of Catalytic Radiant Heaters

J.P.Mmbaga, T.M. Mannan, N. Joederi, S.E. Wanke, and R.E. Hayes
University of Alberta

In this work we present the modelling of catalytic radiant heaters. The presentation outlines the mathematical model as well as a Laboratory setup of a catalytic radiant heater.

Modelling of Layered Rocks with COMSOL Multiphysics

M.A. Rojas[1], and V. Grechka[2]
[1] University of Houston
[2] Shell International E&P

We present static and dynamic computations of the apparent properties for stacks of horizontal isotropic layers (VTI symmetry). The effective stiffness tensors of such media are given by the Backus theory for statics in the limit of zero thicknesses of the constituent layers. We used COMSOL Multiphysics to verify the theoretical static bounds for these effective stiffnesses.

Numerical Investigation for Hydrogen Production using a Proton Exchange Water Electrolysis Cell

S.P. Katukota, J. Chen, and R.F. Boehm
University of Nevada, Las Vegas

Proton Exchange Membrane (PEM) electrolysis is potentially a sustainable and cost-effective technology for generating hydrogen. The present work is aimed to develop a numerical model for the PEM electrolyzer cell.

Activation Imaging of the Heart using Diffusion Models

R. Abou-Marie, and A. Jeremic
McMaster University, Canada

The inverse problem of electrocardiography involves determining information about the electrical activity of the heart from measurements on the body surface. The estimation of certain physiological parameters can potentially improve early detection of heart disease. In this study, we present an algorithm for estimating parameters that characterize the electrical activation. Estimation of ...

Chemical Pulse Dynamics and Control in Microdesigned Catalysts: Phenomena, Modeling and Computational Wrappers

L. Qiao, and I.G. Kevrekidis
Department of Chemical Engineering, Princeton University

We study the effect of two-dimensional composite catalyst geometry and spatiotemporal laser heating on the dynamics of CO oxidation on a Pt (110) surface. The project involves a combination of modeling, computation and experimentation. We show (through both FEMLAB and specially designed experiments) that local laser heating actuation appropriately designed in space and time can be critical in ...

3D Scanning for simulations

N. Nuar
Rutgers University

In this work, we present the principles of 3D scanning. 3D scanning is the process of taking an object in the real world and through finding the relative phase in camera coordinates and projector coordinates, produces a 3D model.

Using COMSOL Multiphysics in Advanced Engineering

Advanced Computational & Engineering Services
Columbus, Ohio

In this presentation we give a thorough introduction to advanced engineering using COMSOL Multiphysics. We introduce you to many disciplines of engineering and physics as well as multidisciplinary, multiscaled multiphysics.

Analysis of Solar Hot Water Storage

K.O. Lund
Applied Chemical and Engineering Systems

In a Solar Hot Water System, the hot water from the solar collector enters at the top of the storage tank. A relevant question concerning the storage is what will the outlet temperature be. In the present work we present a way to model Solar Hot Water Systems.

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