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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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Numerical Modelling of the Plasma Discharge During Electron Beam Welding (EBW)

D. Trushnikov[1], G. Mladenov[2]
[1]Perm National Research Polytechnic University, Perm, Russia
[2]Institute of Electronics of Bulgarian Academy of Sciences, Sofia, Bulgaria

This work describes a model for plasma formation in the keyhole and above the EBW zone. The parameters of the plasma are closely connected to the characteristics of the thermal action of the electron beam on the welded metal, which allows operational control and study of EBW. The ... En savoir plus

MEMS Resonator for RF Applications

V. Harshey
Visvesvaraya National Institute of Technology
Nagpur
Maharashtra, India

Vibrating mechanical tank components, such as quartz crystals and surface acoustic wave (SAW) resonators with Q’s in the range of 10e3–10e6, are widely used to implement high-Q oscillators and band pass filters in the radio frequency (RF) and intermediate frequency (IF) stages of ... En savoir plus

Easy Evaluation of Streamer Discharge Criteria

G. Eriksson[1]
[1]ABB, Corporate Research, Västerås, Sweden

An easily implemented method is devised, where analytical criteria for the occurrence of streamer discharges in strong electric fields are evaluated. This is highly useful when designing high voltage power transmission systems and components where the insulation is provided by a gas, e ... En savoir plus

Voltage and Capacitance analysis of EWOD system using COMSOL

D. Das[1], S. Sohail[1], S. Das[2], and K. Biswas[1]
[1]Electrical Engineering Department, IIT Kharagpur, India
[2]School of Medical Science and Technology, IIT Kharagpur, India

Electrowetting on Dielectrics (EWOD)systems is widely practiced digital microfluidic technique, used in Lab-on-a-Chip (LoC) system for biomedical application. In EWOD, with applied potential, the droplet minimizes its surface energy by transiting towards the actuated electrode. The ... En savoir plus

Dynamic Simulation Of Particle Self-Assembly Applied To Microarray Technology

V. Di Virgilio, A. Coll, S. Bermejo, and L. Castañer
Universitat Politecnica de Catalunya, Barcelona, Spain

In this work we want to explore some techniques, microfluidic and electrospray-ionization based, suitable for dynamic microarrays\' fabrication. The fabrication techniques are based on manipulation and self-assembly of selective coated micro and nanobeads. The simulation will include ... En savoir plus

Simulation of a New PZT Energy Harvester with a Lower Resonance Frequency Using COMSOL Multiphysics®

H. Elbahr[1], T. Ali[1,2], A. Badawi[1], S. Sedky[1]
[1]Zewail City of Science and Technology - Cairo, Cairo, Egypt
[2]Cairo University, Cairo, Egypt

Energy harvesting from environmental vibration nowadays is feasible because of natural oscillations like that caused by air or liquid flow and by exhalation or the heartbeat of a human body. This vibration frequency is typically low (in order of less than 1 kHz). Accordingly, low ... En savoir plus

MEMS based Gecko Foot for Micro Robotics

A. Pasumarthy [1], H. Sinha [1], A. Islam [1],
[1] Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India

Gecko foots have inspired researchers to develop designs that can help robots to tread vertically oriented surface. These nanobots find many applications as they can perform a lot of operations more efficiently and also lower the cost of such operations. These can be employed in various ... En savoir plus

Thin Membrane Modelling for the Electrical Stimulation of Auditory Nerve

A. Grünbaum[1], S. Petersen[1], H.W. Pau[2], and U. van Rienen[1]

[1]IEF funded by DFG Research Training Group 1505/1 Welisa, University of Rostock, Rostock, Germany
[2]Otolaryngology “Otto Körner”, University of Rostock, Rostock, Germany

Modeling of 2-5 μm thin membranes into a cochlea with a width of 2 cm is computationally. The paper is focused on two approximative methods used to overcome this problem and in addition a simple model challenging of a plate capacitor with a thin membrane of different thickness in ... En savoir plus

HIIPER Space Propulsion for Future Space Missions

G. H. Miley[1], M. P. Reilly[2], B. Ulmen[3], P. Keutelian[3], and J. Orcutt[3]
[1]NPL Associates, Inc., Urbana-Champaign, IL
[2]Starfire Industries, Champaign, IL
[3]University of Illinois, Urbana-Champaign, IL

A coupled helicon/IEC plasma jet is in development for space propulsion applications. This device decouples the ionization and plasma acceleration process into separate stages. A realistic model is to consider a plasma media where the relative permittivity is negative or imaginary. ... En savoir plus

FEM Modeling of Electric Field and Potential Distributions of MV XLPE Cables Containing Void Defect

M. Alsharif[1], P. Wallace[2], D. Hepburn[2], C. Zhou[2]
[1]Department of Physics, Faculty of Arts, Sebha University, Sebha, Libya
[2]School of Engineering & Computing, Glasgow Caledonian University, Glasgow, United Kingdom

Introduction: Failure in cable insulation is generally preceded by a degradation phase that may last several years. A significant cause of cable system failures is the breakdown of electrical insulation between the electrodes. The operational stresses that occur in cable insulation which ... En savoir plus

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