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.

Thermal Integration of Coupled SOFC System with a High-Performing Metal Hydride Storage

A. Mossadegh Pour[1], A. Dhira [1], R. Steinberger-Wilckensa[1]
[1]Department of Chemistry, University of Birmingham, Edgbaston, Birmingham, United Kingdom

Auxiliary Power Units can play an important role in reducing vehicle emissions, especially in diesel and kerosene driven vehicles. In conventional vehicles the electricity supply comes from a generator that is directly coupled to the propulsion engine. New generation of fuel cell APUs exclusively use Solid Oxide Fuel Cells with some developments in high temperature polymer electrolyte membranes ...

Analysis on Reaction Mechanism and Kinetics of CVD using COMSOL Multiphysics®

Yudai SUZUKI[1]

[1]The University of Tokyo, Tokyo, Japan

Chemical vapor deposition (CVD) is widely used in various fields including the fabrication of electronic devices due to its uniform film formation capability on the large-scale wafers and the minute 3D structures. In CVD, precursors (metal compounds) are commonly reacted in gas-phase as well as on the substrate to yield a film, and thereby it is rather difficult to reveal the reaction mechanism ...

Trapping DNA Molecules in Fluids Using Electrokinetic Effects Generated by Different Electrode Geometries

S. Ghonge[1], S. Kapur [1], S. Banerjee[1]
[1]Birla Institute of Technology and Science, Pilani - Hyderabad Campus, Hyderabad, Telangana, India

In this paper we present results of simulations done to predict the behavior of a system consisting of DNA molecules in an aqueous medium under the combined effect of AC Electroosmosis and Dielectrophoresis (DEP). ACEO is caused by the movement of fluid particles under the influence of the electric field. DEP is caused by polarization of the DNA particle. Two different electrode geometries ...

Analysis of Flow in a Microfluidic Device: Pressure Drop, RTD and Mixing

A. Kulkarni[1]
[1]NCL, Pune, Maharashtra, India

Continuous flow reactors are recently being used for lab scale synthesis as well as pilot scale manufacturing of high value low volume chemicals. Here we present our work on a new configuration of flow reactor that includes several 1800 bends and yet a varying radius of curvature thereby yielding continuous change in the direction of streamlines. Experiments as well as simulations (in COMSOL ...

Optimum Design for Magneto-Rheological Brake Using COMSOL Multiphysics® Software

J. Thanikachalam[1], P. Nagaraj[1]
[1]Mepco Schlenk Engineering College, Sivakasi, Tamil Nadu, India

The Automotive industry has now become a technology of “Drive by Wire”. This technology is used to replace the conventional mechanical system by electromechanical system which is able to perform the same tasks faster, more reliably and accurately. The problems with the traditional braking systems are unreliable at high speeds, long respond time, more brake pad wear, high temperature ...

Numerical Modeling of Alkaline Fuel Cell

S. Dudi[1], R. K. Krishnan[2]
[1]IIT Madras, Chennai, Tamil Nadu, India
[2] ARCI, IITM Research Park, Chennai, Tamil Nadu, India

A fuel cell is an efficient and clean alternative power source of energy. Alkaline anion exchange membrane (AAEM) fuel cells are one in which conduction of oH- (hydroxyl ion) take place. The advantages of using alkaline fuel cells over proton exchange membrane fuel cells is that electrochemical kinetics is fast and alkaline environment is friendly for catalysts. Experiments performed at ...

Efficient Heat Management Technique for Electronic Display Device

U. Shukla[1], and D. Gupta[1]
[1] Department of Materials and Metallurgical Engineering, Indian Institute of Technology Kanpur, Uttar Pradesh, India

One of the major challenges faced by the semiconductor industry is that electronic circuits produce a lot of heat energy during their operation. And with the current scenario where the gates are packed so much close together, then the problem of heat generation has become extremely significant. So we are working towards the efficient heat management and dissipation solution for the heat generated ...

Modeling Mechanical Deformation and Optical Waveguiding Properties of Ion-Implanted Diamond

F. Bosia[1], P. Olivero[2], and E. Vittone[2]
[1]Dipartimento di Fisica Teorica, Università di Torino, Torino, Italy
[2]Dipartimento di Fisica Sperimentale, Università di Torino, Torino, Italy

Ion implantation in insulating materials leads to local variations in mechanical and optical properties that can be exploited for the fabrication of micro-structures. In particular, ion irradiation of diamond causes the formation of buried amorphised layers, with correspondent mass density and refractive index variations that depend on the level of “damage” of the crystal structure. ...

Finite Element Modeling a Redox-Enzyme-Based Electrochemical Biosensor

Y. Huang[1], and A. Mason[1]
[1]Electrical and Computer Engineering, Michigan State University, East Lansing, Michigan, USA

This paper describes the modeling of an electrochemical biosensor embedded in a microfluidic channel to determine the concentration of a target biomolecule. The total amount of analyte in the sample can be calculated by integrating the analyte concentration over the duration of the peak current. The biosensor is constructed by immobilizing redox-enzyme on an interdigitated array (IDA) electrode ...

Modeling the Collimator-Detector Scattering Using Stochastic Differential Equations and COMSOL

A. Jeremic[1], T. Farncombe[2], S. Liu[2], and Y. Abdul-Rehman[1]
[1]Department of Electrical and Computer Engineering, McMaster University, Hamilton, Ontario, Canada
[2]Department of Radiology, McMaster University, Hamilton, Ontario, Canada

Single photon emission computed tomography (SPECT) is a nuclear medicine imaging technique that uses gamma rays. It has been especially useful for bone scans, cardiac perfusion imaging, tumor scans and brain imaging. The main advantage of SPECT imaging is that it can target particular tissue receptors allowing one to focus on the imaging of the diseased tissue. In most cases Monte Carlo ...

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