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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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Boston 2025

Terme recherché:

"Electrostatic%"

Experimental Investigations and Numerical Simulation of Electrothermally Actuated Micro-gripper

B. K. S. Kishor[1], T. Ramesh [1],
[1] NIT Trichy, Tiruchirappalli Tamil Nadu, India.

At the micron-level, thermal actuation exerts larger forces compared to the widely-used electrostatic actuation. To obtain large displacements at low voltage the principle of Electro Thermal actuation is used. It works on the principle of selective non-uniform Joule heating which results ... En savoir plus

HIIPER Space Propulsion Simulation Using AC/DC Module

Z. Chen [1], D. Ahern [1], G. Miley [1],
[1] University of Illinois at Urbana-Champaign, Urbana, IL, USA

The Helicon Injected Inertial Plasma Electrostatic Rocket (HIIPER) is an electric space propulsion concept being studied that utilizes a helicon source to generate a plasma and metal grids from inertial electrostatic confinement (IEC) fusion experiments to accelerate ions, generating a ... En savoir plus

Metal MEMS Membrane Based Electric Field Sensor

E. Tahmasebian[1], C. Shafai[1], T. Chen[1]
[1]University of Manitoba, Winnipeg, MB, Canada

A MEMS based electrostatic field sensor is presented which uses capacitive interrogation of an electrostatic force deflected microstructure. The deflection of the sensor is calculated both by simulation and theoretical model and it has been shown that the results of the simulations have ... En savoir plus

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

Collecting Photons from an STM Microscope

H. Cabrera [1], B. Zengin [2],
[1] Laboratory for Solid State Physics, ETH Zürich, Zürich, Switzerland
[2] Department of Physics, Istanbul Technical University, Turkey

We modify a Tunnel Effect Microscope (STM) with the purpose of analyzing the local production of photons in the electrostatic junction during the image taking process. The novelty of this project compared to previous studies is that it is intended to be developed from the beginning as ... En savoir plus

Design of a RF MEMS Switch

B. Mishra, M. P. S. Naidu, J. Raj, and Z. C. Alex
VIT University
Vellore
Tamilnadu, India

This paper presents a novel design of a RF MEMS Switch. The switch is a capacitive type, which is actuated by an electrostatic force. The structure of the switch consists of a CPW (coplanar waveguides) transmission lines and a suspended membrane. The modelling of switch is done using ... En savoir plus

Calculating Impedance of a Common Mode Choke in High Frequency Regime

J. Lin [1],
[1] Pitotech Co. Ltd., Changhua City, Taiwan

Common mode chokes are good EMI filters in electronic power systems [1]. For such devices, values for their impedance are critical to their performances as noise filters. In this study, a two-step finite element approach is employed to study the impedance variations of a ferrite-core ... En savoir plus

Multiphysics Model for Breakup of Charged Liquid Droplets in Electric Fields

S. Chaudhuri [1], W. Du [1],
[1] University of Illinois at Urbana-Champaign, Champaign, IL, USA

Predicting and controlling the formation of droplets from a liquid jet is a critical problem in a variety of applications ranging from fuel injection to paint sprays. It is known that liquid droplets subjected to an electric field acquire a net electrostatic charge via induction, and ... En savoir plus

Parametric Simulation of PZT Diameter to Hole Ratio for Optimized Membrane Displacement

A. Arevalo [1], D. Castro [1], D. Conchouso [1], I. G. Foulds [2]
[1] Computer, Electrical and Mathematical Sciences and Engineering (CEMSE), King Abdullah University of Science and Technology (KAUST), Saudi Arabia
[2] The University of British Columbia, School of Engineering, Okanagan Campus, Saudi Arabia

For our simulation we used the Piezoelectric Devices interface. The structure was set with (clamped) fix constraint boundaries to both ends. The bottom electrode was set to be the ground for the electrostatic physics and the top electrode was set to be a Terminal with potential of 10V. A ... En savoir plus

Electrowetting on dielectric: history effects on rupture voltage

Biao Tang（唐彪） [1], Zhongqian Sun（孙中谦） [1], Jan Groenewold [2], Guofu Zhou [3],
[1] Electronic Paper Display Institute , South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
[2] Van ‘t Hoff Laboratory for Physical and Colloid Chemistry, Debye Research Institute, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands.
[3] Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China.

Electrowetting on dielectric devices use a conducting (water) and insulating (oil) liquid phase, in conjunction, on a dielectric layer . In these devices, the wetting properties of the liquid phases can be manipulated by applying an electric field. The electric field can rupture the ... En savoir plus

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