Technical Papers and Presentations

Quick Search

Resources

White Papers and Application Notes

See How Multiphysics Simulation Is Used in Research and Development

Engineers, researchers, and scientists across industries use multiphysics simulation to research and develop innovative product designs and processes. Find inspiration in technical papers and presentations they have presented at the COMSOL Conference. Browse the selection below or use the Quick Search tool to find a specific presentation or filter by application area.

View the COMSOL Conference 2024 Collection

Search Term:

Piezoelectric Buzzer Optimization for Micropumps

A. Garcia[1], A. Marcus[1], F. Tejo[1], C. Precker[1], C. Moreira[2]
[1]Universidade Federal de Campina Grande, Campina Grande, PB, Brazil
[2]Instituto Federal de Alagoas, Maceio, AL, Brazil

Piezoelectric buzzers are low cost devices which can be used successfully as actuators in diaphragm-based micro-pumps. The buzzers are piezoelectric wafers (lead-zirconate-titanate-PZT) that are glued on a brass membrane and they are available within different sizes and thicknesses. For ... Read More

SWRO (Desalination) Biofilm Remediation Technology Utilizing Centrifugal Micro-Fluids

E.M. Glenn[1]
[1]University of California, Irvine, CA, USA

Water-and-energy supply is a global issue of paramount importance. The demand for safe potable water is quickly exceeding the limits of natural regional water resources. Like oil, water is a finite resource; unlike oil, however, water has no alternatives. Water, energy and their ... Read More

Geometric Optimization of Piezoelectric Energy Harvesting System

R. Badran[1], H. Ghali[1]
[1]Electrical Engineering Department, The British University in Egypt (BUE), El Sherouk City, Egypt

The aim of this paper is to study the effect of geometrical optimization of an array configuration for a unimorph piezoelectric cantilever element. The process involves connecting a previously optimized unimorph piezoelectric cantilever in a two-element array, then in a three-element ... Read More

A Numerical Comparison of Dielectric based Measurement of Atmospheric Ice Using COMSOL

U. N. Mughal[1], M. S. Virk[1]
[1]Narvik University College, Narvik, Norway

Atmospheric ice is a very complex material with varying electrical properties due to different polymorphs of ice itself. Also, if the medium to be considered is snow, then density becomes an additional parameter because it is a mixture of three dielectrics water, ice and air. The ... Read More

Numerical Study of the Scattering of a Short-Pulse Plane Wave by a Buried Sphere in a Lossy Medium

F. Frezza[1], F. Mangini[1], M. Muzi[2], P. Nocito[3], E. Stoja[1], N. Tedeschi[1]
[1]Department of Information Engineering, Electronics and Telecommunications, "La Sapienza" University of Rome, Rome, Italy
[2]Institute of Advanced Biomedical Imaging, "G. d'Annuzio" University Fondation, University "G. d'Annuzio" Chieti-Pescara, Chieti, Italy
[3]Istituto Superiore C.T.I., Communications Department, Ministry of Economic Development, Rome, Italy

The scattering by a buried sphere in the frequency domain with the use of the Finite Element Method (FEM) implemented by COMSOL Multiphysics, is analyzed. A short-pulse is used as an excitation with the spectrum spanning from 50 MHz to 1 GHz. In order to validate our results, a ... Read More

Numerical Modeling and Performance Optimization Study of a Diaphragm Pump for Medical Application

I. Lupelli[1], P. Gaudio[1], A. Malizia[1], R. Quaranta[1]
[1]Department of Industrial Engineering, University of Rome “Tor Vergata”, Roma, Italy

In this contribution we present the results of the numerical modeling and performance optimization study of a diaphragm pump for drug infusion. The main objective is to develop a numerical model that replicates the pumping cycle (400ms) and also provides indications about the variation ... Read More

3D Modeling of Plasmon Excitation by Grating

G.G. Gentili[1], S. Pietralunga[2], M. Bolzoni[1]
[1]Politecnico di Milano, Dipartimento di Elettronica e Informazione, Milano, Italy
[2]INFN-CNR, Istituto di Fotonica e Nanotecnologie, Milano, Italy

Grating-assisted optical coupling into long-range modes of strip plasmonic waveguides is analyzed by a 3D numerical simulation with COMSOL Multiphysics. We used the RF Module and its scattering formulation. A comparison with results obtained using the common 2D approximated analysis is ... Read More

A High Power Planar Triode Oscillator Designed by Using FEM Modeling

S. Lefeuvre[1], M. Ghomi[2]
[1]EURL CREAWAVE, Labège, France
[2]CALCEM, Ste Foy d'Aigrefeuille, France

COMSOL, adding SPICE® elements into its FEM, gives the possibility of a direct modeling of oscillators: triode and load are FEM described while all the other components of the circuit are just simulated using SPICE®. The modeling is not a straight application of any module but needs the ... Read More

Utilization of COMSOL Multiphysics' JAVA API for the Implementation of a Micromagnetic Modeling and Simulation Package with a Customized User Interface

L. Teich[1], A. Hütten[2], C. Schröder[1]
[1]Department of Engineering Sciences and Mathematics, Computational Materials Science & Engineering (CMSE), University of Applied Sciences Bielefeld, Bielefeld, Germany
[2]Department of Physics, Thin Films and Nanostructures, Bielefeld University, Bielefeld, Germany

One of the big advantages of COMSOL Multiphysics is the possibility to implement user-defined partial differential equations (PDE) which can be coupled to COMSOL\'s predefined physics interfaces. However, using the tool’s standard user interface requires manual implementation of the PDEs ... Read More

Terahertz Resonant Dipole Nanoantennas

S. Tuccio [1], A. Alabastri[1], L. Razzari[1], A. Toma[1], C. Liberale[1], R. Proietti Zaccaria[1], F. De Angelis[1], G. Das[1], E. di Fabrizio[1]
[1]Istituto Italiano di Tecnologia, Genova, Italy

Nanoantennas have been successfully employed in a wide set of applications. We show the possibility to expand usual nanoantenna functionalities in the THz domain with a gold dipole nanoantenna. We considered an array of aligned planar gold nanoantennas over a silicon substrate. The high ... Read More

First

1621–1630 of 1680

Last