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Voyez comment la modélisation et la simulation sont utilisées par les industries La modélisation et la simulation multiphysiques pilotent l'innovation dans tous les grands secteurs d'activité et dans le monde universitaire — comme en témoignent les nombreuses utilisations présentées dans des articles et des posters techniques présentés par des ingénieurs, chercheurs et scientifiques à la Conférence COMSOL chaque année. Inspirez-vous des récents proceedings réunis ci-dessous, ou, pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt, utilisez la recherche rapide.

Consultez les proceedings de la Conference COMSOL 2024

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3D Thermo-Acoustic Modeling of a Piezo Transducer for Directed Interstitial Ultrasound Ablation

K. Y. Gandomi¹, Z. Zhao¹, P. A. Carvalho¹, C. J. Nycz¹, G. S. Fischer¹, E. C. Burdette²
¹Worcester Polytechnic Institute, Worcester, MA
²Acoustic Medsystems Inc., Savoy, IL, USA

Thermal ablation is a treatment option in oncology that can be used to target primary and metastatic cancers. In this approach, high temperature heating is administered at the target tumor site to induce coagulative necrosis of malignant cells. One minimally invasive method for ... En savoir plus

Thermo-Acoustic Simulation of a Piezoelectric Transducer for Interstitial Thermal Ablation with MRTI Based Validation

K. Gandomi[1], P. Carvalho[1], Z. Zhao[1], C. Nycz[1], E. Burdette[2], G. Fischer[1]
[1]Worcester Polytechnic Institute, USA
[2]Acoustic Med Systems, USA

The five year survival rate for malignant brain and central nervous system cancer was estimated at 35% between 2000 and 2015. Deep brain tumors can be unsuited for conventional surgical intervention. One minimally invasive treatment option is interstitial needle-based therapeutic ... En savoir plus

Design and Simulation of a MEMS-Based Ultrasonic Transducer for Viscosity Sensing Applications

Rahul Goyal [1], Divya Mohan Yadav [1],
[1] Indian Institute of Science, Bangalore, Karnataka, India

Technologies based on micro electro mechanical systems (MEMS) present advantages for rheological applications as they enable the fabrication of smaller sensors with faster response times. In this work we propose fabrication parameters and simulation of a MEMS viscometer. This research ... En savoir plus

Co-simulation Framework in COMSOL Multiphysics® for Displacement of a MEMS Cantilever using a Depletion Schottky Transducer

K. Dhope[1], S. Tallur[1]
[1]Indian Institute of Technology Bombay, India

Depletion layer MEMS actuators have been demonstrated in the past in p-n junctions as well as Schottky barrier interfaces to be effective transducers for internal transduction of high Q MEMS resonators without the need for piezoelectric materials or small resonator-electrode gaps. ... En savoir plus

Near-Field of Resonating Piezoelectric Membrane Used as Ultrasound Transducer

V. Tzanov [1], J. Munoz [1], F. Torres [1], N. Barniol [1],
[1] Universitat Autonoma de Barcelona, Bellaterra, Spain

Micro-machined ultrasound transducers have a wide range of applications. As a sensor or actuator they can be used for measuring fluid speed and direction, to mix and excite particles (sonication), for taking images (ultrasonography), for non-destructive testing and many other purposes in ... En savoir plus

Measurement and FEA Simulation of the Electro-mechanical and Acoustic Response of an Of-the-shelf Open-type Piezoelectric Flexural Ultrasonic Transducer

S. Jackson[1]
[1]University of Bristol, United Kingdom

High power, air-coupled ultrasound has gained significant interest from the research community due to the rise in applications such as non-contact particle manipulation, haptic feedback, and sound steering. A growing number of researchers are utilizing transducers designed for proximity ... En savoir plus

Simulation Optimization of Acoustophoresis in Microfluidics: Modelling and Performance Parameters

R.Zhang¹, I.Z. Boboescu¹, V. Saggiomo², M.H.M. Eppink¹, R.H. Wijffels¹
¹Bioprocess Engineering, AlgaePARC, Wageningen University & Research, Wageningen, the Netherlands
²Laboratory of BioNanoTechnology, Wageningen University & Research, Wageningen, the Netherlands

Acoustophoresis is a promising technology for the downstream processing of microalgae biorefineries(Zhang et al., 2025). By generating acoustic radiation forces and acoustic streaming, it enables precise manipulation of particles within an acoustic standing field of a microfluidic chip ... En savoir plus

Development of a Micro Ultrasonic Transducer

F. F. Dall'Agnol[1], A. C. F. de Mattos[1]
[1]Center for Information Technology Renato Archer (CTI), Campinas, SP, Brazil

We simulate a Capacitive Micromachined Ultrasound Transducer (CMUT) using COMSOL Multiphysics® software. The CMUT is an electromechanical system, therefore, we couple the physics of electrical and structural mechanics to describe its dynamics. We obtain the distributions of the electric ... En savoir plus

Considerations Regarding the Design of a Power Ultrasonic Transducer with Flat Rectangular Plate

R. R. Andrés [1], E. Riera [1],
[1] Grupo de Sistemas y Tecnologías Ultrasónicas, ITEFI, CSIC, Madrid, España

There are several industrial applications, like food dehydration, atomization and textile washing among others, that are enhanced by the use of power ultrasonic transducers with flat rectangular plate radiator. These transducers are composed by three main parts, the piezoelectric ... En savoir plus

Characterization of a Tonpilz Transducer and Performance Analysis for a MEMS-Transducer Array

V. Vadde, and B. Lakshmi G
PESIT

In this paper, we develop and analyze a standard piezoacoustic Tonpilz-transducer model for underwater acoustics in Comsol by addressing the attendant piezoelectric and pressure acoustic multiphysics phenomena. Transducer properties that are studied and characterized are the center ... En savoir plus

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