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Ici vous trouverez les présentations issues des Conférences COMSOL à travers le monde. Réalisées par des utilisateurs de COMSOL Multiphysics, ces présentations explorent tous les domaines actuels d'innovation. Les applications couvrent pratiquement tous les secteurs industriels et impliquent des phénomènes électriques, mécaniques, fluidiques et chimiques. Utilisez la recherche rapide pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt.

Consultez les proceedings de la Conference COMSOL 2024

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Improved Charge Amplification in Microfluidic Energy Harvesting Using COMSOL Multiphysics® Simulation Software

S. Mackenzie[1], A. Eden[1], M. Prichard[1], B. Dutcher[1], C. Meinhart[1], D. Huber[1], M. Napoli[1], D. Weld[1], S. Pennathur[1]
[1]University of California, Santa Barbara, USA

We present a detailed 2D COMSOL Multiphysics® model used to determine and improve the conversion efficiency in a liquid-metal microfluidics-based portable energy transducer. To date, most work on power generation technologies has focused on the optimization of existing technologies, and ... En savoir plus

Design and Optimization of a Multi-Purpose, High-Power Ultrasonic Reactor

l. spicci[1]
[1]Everywave Srl, Italy

Many industrial applications require special treatments for fluid products, such as: deagglomeration, dispersion, homogenization, emulsion, special mixing or even catalysis of chemical reactions. Such effects can be obtained through cavitation in a closed ultrasonic reactor, in which it ... En savoir plus

Studies of Lead Free Piezo-Electric Materials Based Ultrasonic MEMS Model for Bio sensor

P. Pattanaik[1], S. K. Kamilla[1], D. P. Das[2], S. K. Pradhan[3]
[1]MEMS Design Center, Institute of Technical Education & Research (ITER), Sikhya ‘O’ Anushandhan University, Bhubaneswar, Odisha, India
[2]Process Engineering and Instrumentation Lab, Institute of Minerals and Materials Technology (IMMT), Bhubaneswar, Odisha, India
[3]Dept of ECE, Hi-Tech Institute of Technology, Khurda, Odisha, India

This paper describes the design of an ultrasonic transducer using different lead free piezo-electric materials and evaluates their performance with different glucose levels in the human blood. COMSOL Multiphysics 4.2a was used for the simulation study using 2D axis symmetric model of ... En savoir plus

On The Directional Response of Multi-Driver Column Loudspeaker Configurations Using FEA and BEM

R. Balistreri [1],
[1] Klipsch Group, Inc, Indianapolis, IN, USA

Column Loudspeakers employ multiple drivers to get close to a radiating line source. A line source gives several acoustic advantages versus a point source, especially in highly reverberant environments. This property particularly has made column loudspeakers the preferred solution in ... En savoir plus

MEMS Acoustic Pixel

A. Arevalo[1], I. G. Foulds[2]
[1]King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
[2]The University of British Columbia, Vancouver, BC, Canada

A COMSOL Multiphysics® simulation was used to simulate the behavior of a micro-membrane (Acoustic Pixel) to be used as a potential acoustic transducer. The MEMS and Piezoelectric devices interfaces were used to simulate such transducer. A four-cantilever spring configuration is initially ... En savoir plus

Time-Dependent Study of Pressure Waves Generated by Square Array MEMS Ultrasound Transducers

M. A. G. Suijlen [1], R. J. Woltjer [1],
[1] Novioscan, Nijmegen, Netherlands

For non-imaging wearable ultrasound applications Novioscan is developing piezoelectric MEMS transducers. These transducers consist of a large array of micromechanical silicon membranes with piezoelectrically actuated regions to generate an out-of-plane displacement causing a pressure ... En savoir plus

Optimization of the geometry of MEMS Piezoelectric Energy Harvester cantilevers

N. Panayanthatta¹, R. La Rosa², C. Trigona³, E. Bano¹, L. Montes¹
¹Grenoble Alpes University, IMEP-LaHC, Grenoble, France
²ST Microelectronics, Catane, Italy
³University of Catania, Catane, Italy

Here we optimize the geometry: proof mass length Lm to total length L, thickness of the piezoelectric material (Tp) to total cantilever thickness (T) for obtaining the maximum stress distribution (Smax), output voltage (Vout) and power performance (Pout) of the unimorph Cantilever beam ... En savoir plus

Laser Assisted Bonding (LADB) Thermal Modeling with COMSOL Multiphysics®

G. Spinola Durante[1], R. Jose James[1], E. Rutz-Innerhofer[1], K. KRASNOPOLSKI[1]
[1]CSEM SA, Switzerland

New emerging trends in the MEMS market are linked to the availability of small, reliable and miniature sensors for harsh environment applications to increase penetration in all application fields, considering very wide operating condition ranges. These trends are pushed forward by the ... En savoir plus

Simulation-Led Design to Optimize Innovative Acoustic Phantom and Ice Catheter Calibration Method

E. Adawi [1],
[1] Biosense Webster, Inc., Kibbutz Shefayim, Israel

Intracardiac Echocardiography (ICE) ultrasound imaging of cardiac cavities is a known diagnostic and monitoring technique, used during interventional cardiology and electrophysiology procedures. The SOUNDSTAR® Catheter, manufactured by Biosense Webster, Inc., enables locating the ... En savoir plus

Design of Traveling Wave Ultrasonic Vibration Disk for Nano-particles in Liquid Dispersion

J. Muraoka, and T. Suzuki
Yamagata Research Institute of Technology
Yamagata
Japan

The traveling wave ultrasonic vibration disks for dispersion of particles were designed by using of FEM analysis. The vibration disks are required specific vibration pattern, which contains three nodal lines. The vibration disk thickness was calculated to be matched the resonance ... En savoir plus

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