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.

Finite element models for the solution of underwater acoustics problems

Mario Zampolli
NATO Undersea Research Centre
La Spezia, Italy

Acoustic waves are used in SONAR systems for the detection and classification of objects which may be swimming in the water column, proud on the seafloor, or buried below the sediment. In some applications, such as low frequency detection and classification of structurally complex objects immersed in a fluid, signal processing techniques must be aided by a-priori model based knowledge of the ...

Developing direct methanol fuel cells using FEMLAB as a modeling tool

Gianluca Bollito
Centro Ricerche FIAT
Orbassano, Italy

Fuel cell converts chemical energy directly to electrical energy through oxidation-reduction reactions. It consists of an electrolyte between two electrodes, the anode and the cathode. The engineering and materials challenges that must be overcome to produce fuel cells small enough for micro-applications (telephones, PDAs, etc.) are enormous, and will require innovative ...

The use of FEMLAB in the electrochemical education

Alessandro Lavacchi
Università degli Studi di Firenze
Florence, Italy

With the equation-oriented structure of COMSOL, it is easy to link the knowledge acquired during the theoretical electrochemical course with simulation. With COMSOL, "playing" with the parameters is easy. In conclusion, COMSOL is a good compromise between the user friendly electrochemical software and the writing of dedicated program code. --------------------------------- Alessandro Lavacchi ...

Numerical simulation of separation flows with FEMLAB 3.1

Carlo Gualtieri
University of Napoli Federico II
Naples, Italy

Flow separation is a common and interesting phenomenon in fluid mechanics with significant effects in practical applications. Thus, it has been the focus of intensive study for many years. The objective of this presentation is to investigate laminar separation flows over a backward-facing step and over a rectangular trench using COMSOL. --------------------------------- Carlo Gualtieri ...

The use of FEMLAB at X(Chi)-Lab for Research and Education

Carlo Ricciardi
Politecnico di Torino
Turin, Italy

This presentation summarises the use of COMSOL at the X(Chi)-Lab Research Institute at the Politecnico di Torino. In particular, it summarises its use in advanced education as well as presenting models of RF Dielectric Heating, Pressure Sensors and Spintronics. --------------------------------- Carlo Ricciardi was one of the keynote speakers at the COMSOL User's Conference, fall 2005 in ...

Using COMSOL in Curved Spacetimes

Christian Cherubini
Universit√° Campus Biomedico
Rome, Italy

Finite elements are a very powerful tool for theoretical physics. COMSOL allows people to easily handle them without facing the problem of programming long FORTRAN/C++ codes. This presentation will show the use of COMSOL in curved spacetimes. --------------------------------- Christian Cherubini was one of the keynote speakers at the COMSOL User's Conference, fall 2005 in Milano

From PDE Toolbox to COMSOL Multiphysics 3.2: Past, Present and Future of Teaching and Research in Thermo-fluids

Enrico Nobile
Università di Trieste
Trieste, Italy

This presentation introduces the history of thermo-fluidics research and teaching and of COMSOL Multiphysics; from its beginnings as the PDE Toolbox until now. --------------------------------- Keynote speaker's biography: Enrico Nobile is Full Professor of thermodynamics and heat transfer at DINMA, University of Trieste. Prof. Nobile is author or co-author of more than 70 publications in ...

Modeling Light-induced Thermal Effects in Ocular Media by Finite Element Method

Francesca Rossi
Consiglio Nazionale delle Ricerche Firenze
Florence, Italy

COMSOL Multiphysics has been used as a supporting tool to our experimental research. Temperature rise inside biological samples was evaluated, giving us the possibility to study the heat damage induced in the tissue, the mechanism of photothermal processes, and to optimize surgical procedures. --------------------------------- Francesca Rossi was one of the keynote speakers at the COMSOL ...

Thermo-fluid-dynamic evaluation of a microsystem to analyse radioactive solutions

G. Janssens-Maenhout
Joint Research Centre Ispra
Ispra, Italy

It has become common place to use micro-electromechanical systems (MEMS) to evaluate the chemical properties of solutions. However, such microchips have not yet been applied to the analysis of radioactive solutions, for the purpose of nuclear safeguards, in the nuclear reprocessing industry. Implementing MEMS in this area results in a reduced volume of the sample to be analysed. This has many ...

High frequency loudspeakers vibro-acoustic modeling

Mattia Cobianchi
C.I.A.R.E. s.p.a.
Senigallia, Italy

In this presentation the modeling of a PET dome for a high frequency compression driver using the structural mechanics application mode coupled to the acoustic application mode in Femlab 3.1 allows the computation of the acoustic pressure field in the air surrounding the device. Optimization of the model to reduce computation time involves the choice of both the radius of the 2D axial ...

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