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 ...

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 ...

Computational Cardiology with COMSOL Multiphysics

Simonetta Filippi
Universit√° Campus Biomedico
Rome, Italy

Mathematical models of heart activity represent today a very important research area both in Theoretical Physics and Biomedical Engineering. COMSOL Multiphysics is applied to solve the non linear equations describing the propagation of electric signals in cardiac tissue eventually with mechanical or thermal coupling. These physiological phenomena, are described by the Fitzhugh-Nagumo equations ...

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

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 ...

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 ...

The pianistic touch: FEMLAB modeling of a grand piano action

Riccardo Ferrari
University of Trieste
Trieste, Italy

In this presentation we will show how to partially model a grand piano action. Then we will apply different touches to this virtual action and try to hear any difference. --------------------------------- Riccardo Ferrari was one of the keynote speakers at the COMSOL User's Conference, fall 2005 in Milano

Numerical study of unsteady flow and heat transfer in corrugated geometries

Sara Rainieri
University of Parma
Parma, Italy

Surface corrugation is a widely used convective heat transfer enhancement passive technique. In this presentation we will perform a numerical study of unsteady flow and heat transfer in corrugated geometries. --------------------------------- Sara Rainieri was one of the keynote speakers at the COMSOL User's Conference, fall 2005 in Milano

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 ...

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