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.

Time Dependent Simulations of Thermoelectric Thin Films and Nanowires for Direct Determination of their Efficiency with COMSOL Multiphysics®

M. Muñoz Rojo[1], J. Jose Romero[1], D. Ramos[1], D. Borca-Tasciuc[2], T. Borca-Tasciuc[2], M. Martín Gonzalez[1]
[1]Instituto de Microelectrónica de Madrid, Madrid, Spain
[2]Rensselaer Polytechnique Institute, Troy, New York, USA

Thermoelectric materials are one of the most promising materials for future and nowadays energy harvesting devices, as they can convert heat into electricity and vice-versa. The efficiency of thermoelectric materials is related with the figure of merit, ZT. Our work deals with the determination of the parameters that affect the measurement of the ZT with the Harman technique and the best ...

Influence of Electrode Kinetics on Lithium-ion Battery Characteristics

H. Machrafi[1,2], S. Cavadias[2]
[1]University of Liège, Thermodynamics of Irreversible Phenomena, Liège, Belgium
[2]University Pierre et Marie Curie, Laboratoire des Procédés Plasma et Traitement de Surface, Paris, France

The purpose of this work is to show whether an important difference in Lithium solid concentration and electrolyte concentration can be observed in a Lithium-ion battery model, when considering either the Butler-Volmer kinetics or the Tafel kinetics for describing the electrode kinetics (including a boundary layer between the electrolyte and the electrode particles). During discharge, the ...

Simulating Wear in Disc Brakes - new

N. H. Elabbasi[1], M. J. Hancock[1], S. B. Brown[1]
[1]Veryst Engineering, LLC., Needham, MA, USA

Wear is a complex phenomenon relevant to many problems involving frictional contact, such as mechanical brakes, seals, metal forming, and orthopedic implants. The rate of wear depends on the properties of the contacting materials and operating conditions. One widely used model of wear is Archard’s law, which relates the rate of material removal due to wear to the contact pressure, sliding ...

Analysis of a Metal Foam Heat Exchanger

V. Villani [1], G. Bella [2],
[1] University "Niccolò Cusano", Engineering Department, Rome, Italy
[2] University "Niccolò Cusano", Engineering Department, Rome, Italy; University of Rome "Tor Vergata", Rome, Italy

We present a numerical investigation on a metal foam radiator in natural convection. Metal foams are innovative lightweight materials with unique heat dissipation properties. COMSOL Multiphysics® has been used to reproduce experimental data and generate an optimized geometry to maximize the heat flux. Local Thermal Equilibrium approach has been used. The model was generated taking advantage of ...

Lithium Ion Battery Thermal Safety and Prevention Measures

Qingsong Wang [1]
[1] University of Science and Technology of China, Hefei, China

Lithium ion battery safety problem has attracted the whole world’s attention essentially after the explosion of Samsung Note 7. This work mainly deals with the study of the generation, characteristics and prevention measures of the battery fire. Firstly, the heat generation rate of battery in the dynamic cycling was analyzed in Batteries & Fuel Cells Module and Heat Transfer Module of the COMSOL ...

Simulation of Microstructured Rolling-Sliding Contacts - new

M. Weschta[1], S. Tremmel[1], S. Wartzack[1]
[1]Engineering Design, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Bavaria, Germany

To reduce friction in lubricated tribological contacts, the surfaces of the contacting bodies can be microstructured to improve lubricating conditions. For lower loaded contacts this approach has already reached industrial applications, e.g. the piston-liner contact. For higher loaded contacts the effects are currently in basic research. Elastic deformation in the contact area plays an important ...

Fluid Dynamic Analysis of the Multi-Lumen Thoracic Catheter

S. Budar [1], A. Ritter [1]
[1] Department of Chemistry, Chemical Biology & Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ, USA

In order to achieve an optimized design of the Multi-Lumen Thoracic Catheter (MLTC), fluid dynamics analyses were conducted utilizing COMSOL Multiphysics® software with LiveLink™ for Solidworks®. Lumen placement, diameters, and termination points were adjusted to ensure maximum drainage efficacy. It was determined through this study that even with the additional flow through the access lumen, ...

Modeling of Straight Jet Dynamics in Electrospinning Process

R. Pandya [1], A. Kumar [2], V. Runkana [1],
[1] Tata Research Development and Design Centre, Tata Consultancy Services, Pune, India
[2] Indian Institute of Technology, Delhi, India

Electrospinning is a process where high voltage is applied to produce polymer fibers of nanoscale diameter. Various polymers have been used for this process in molten form or as a solution with an appropriate solvent such as glycerol. The melt solidifies while the solvent evaporates to produce fibers. The fibers produced have properties such as high surface to volume ratio and a molecular ...

Level Set Method for Fully Thermal-Mechanical Coupled Simulations of Filling in Injection and Micro-Injection Molding Process

M. Moguedet[1], R. Le Goff[1], P. Namy[2], and Y. Béreaux[3]
[1]Pôle Européen de Plasturgie, Bellignat, France
[2]SIMTEC, Grenoble, France
[3]INSA de Lyon, Site de Plasturgie, Bellignat, France

In this work we tackle a more theoretical aspect of micro-injection molding, to better understand physics during the process, through numerical simulations of cavity filling. We developed a two phase flow approach by the use of COMSOL Multiphysics®. In a first step, a Level Set model is applied to several configurations: Newtonian and non Newtonian fluid (Cross viscosity law), coupled with a ...

Multiphysics Approach of the Performance of a Domestic Oven

N. Garcia-Polanco[1], J. Capablo[1], J. Doyle[1]
[1]Whirlpool Corporation, Cassinetta di Biandronno (VA), Italy

The heat and mass transfer processes occurring in a domestic oven is in detailed analyzed in this work, with the final objective of improving the global energy efficiency of the system. A 3D Finite Element model developed with a Multi-physics approach is validated with the experimental data from the standard test for energy consumption of the European Union (EN 50304:2001). In this test a brick ...