Papers & Presentations

COMSOL has successfully hosted worldwide annual conferences showcasing various areas of research done by our users. Papers and Presentations from these events are available online.

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Ten Most Popular Papers

COMSOL Multiphysics® Version 4

Svante Littmarck
President and CEO, COMSOL

Svante Littmarck is the CEO of the COMSOL group. He co-founded COMSOL in 1986. He holds a M.Sc. in Applied Mathematics from the Royal Institute of Technology in Stockholm. In 2004 he received an honorary doctoral degree from the Royal Institute of Technology.

3-D Finite Element Modeling of a Nanostructure Enhanced SAW Sensor

Y.L. Rao1, and G. Zhang1-3
1 Micro/Nano Bioengineering Laboratory, Department of Biological and Agricultural Engineering, The University of Georgia
2 Nanoscale Science and Engineering Center, The University of Georgia
3 Faculty of Engineering, The University of Georgia

Integration of surface acoustic wave (SAW) devices with nanostructures has gained interest in the development of sensors with high sensitivity. To better design nanostructure integrated SAW devices, it is essential to model three dimensional (3-D) SAW devices and analyze the wave propagation...

Multiphase, Dual Polymer Injection Molding and Cooling of an Open Cavity to Form both Distinct and Graduated Material Properties within a Complex Three-Dimensional Body

M.S. Yeoman1
1Continuum Blue Ltd, Forest Row, United Kingdom

With the advancement of medical devices and implants, many now require more advanced nonlinear, hyper-elastic materials such as elastomers to be extensively utilized in the body. This combined with the need to allow for...

Hydraulic Design of Activated Sludge Tanks with CFD

A. J. Bosma, and B. A. Reitsma
Tauw bv, Deventer, The Netherlands

The hydraulic design of wastewater treatment plants (WWTP) is usually based on general guidelines and experience. Research and development in this field is mainly focused on understanding and improvement of the biological processes.

In this article we present modeling of the activated...

A Semplified Model for the Evolution of a Geothermal Field

L. Meacci1, A. Farina1, F. Rosso1, I. Borsi1, M. Ceseri1, and A. Speranza1

1Dipartimento di Matematica U. Dini, Università degli Studi di Firenze, Firenze, Italy

The problem is to understand how a geothermal field can evolve from a water dominated state into a vapor dominated one. A first answer to this question is given by a simplified mathematical model...

Modelling of Melt Cast Cooling and Solidification Processes for Explosives

P. Lamy-Bracq1 and C. Coulouarn1
1Nexter Munitions, Tarbes, France

A solidification process of casting explosives in shell is studied in this paper. An enthalpy method approach is used to model the solidification process. Both the thermal and mechanical effects are taken into account....

FEMLAB simulation of thermoplastics injection-molding

Varela, A.E., Suárez, M.
Universidad de Carabobo, Facultad de Ingeniería, Valencia, Venezuela

The thermoplastics injection-molding process of has become one of the most important polymer processing operations in the production of molded parts with geometric complexity and high precision. Modeling and computer simulation of this process is not an easy task. Commercial computer packages...

Solidification of a Liquid Metal Droplet Impinging on a Cold Surface

Tanai L. Marin,
Faculty of Physics and Mathematics Sciences,
Department of Mining Engineering,
University of Chile,
Santiago, Chile

A method for the solidification of a free surface liquid phase is presented and solved with COMSOL Multiphysiscs using a fixed grid.

In this case, the Level set method with phase re-injection for mass conservation is used to prescribe the movement of the free surface of the liquid...

Mathematical Modeling of a Lithium Ion Battery

R. E. White1, and Long Cai2
1R.E. White & Associates LLC, Columbia, South Carolina, USA
2Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina, USA

The existing lithium ion battery model in COMSOL’s Multiphysics  software is extended to include the thermal effects. The thermal behavior of a lithium ion battery is studied during the galvanostatic discharge process with and without a pulse. The existing lithium ion battery model...

FEM Simulation of a Micro-Cantilever Optical-MEMS Sensor

V. Mathur, J. Li, and W.D. Goodhue
Photonics Center, Department of Physics and Applied Physics, University of Massachusetts, Lowell

In this work a micro-cantilever optical-MEMS sensor based on the AlGaAs system is designed and modeled. The device consists of two micro-cantilever beams perfectly aligned with the free ends separated by approximately 200 nm up to 2000 nm. The finite element method (FEM) (COMSOL Multiphysics)...

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