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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.

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Cavity Sprayer Flow Optimization for Medical Devices Industry

T. Selvam, V.P. Kotte, and M. Marimuthu

HCL Technologies Ltd, Chennai, Tamil Nadu, India

Globally in Otolaryngology industry, Sinusitis is one of the most common diseases related to the nose. Sinusitis is caused when the cilia fail to move the mucus. As a result sinus tissue gets infected that leads to blockage of the sinuses. All the sinusitis can not be cured through drugs ... Read More

Simulating Frequency Nonlinearities in Quartz Resonators at High Temperature and Pressure

A. Beerwinkle[1], R. Singh[1], and G. Kirikera[2]
[1]Mechanics of Advanced Materials Laboratory, School of Mechanical and Aerospace Engineering, Oklahoma State University, Tulsa, OK
[2]Geophysical Research Company, LLC, (GRC) Tulsa, OK

A three-dimensional finite element model, based on the linear field equations for superimposed small vibrations onto nonlinear thermoelastic stressed media given by Lee and Yong, was developed. This method involves solving the thermal stress and piezoelectric model with geometric and ... Read More

Particle Tracing: Analysis of Airborne Infection Risks in Operating Theatres

P. Apell[1], S. Hjalmarsson[1], T. Lindberg[1], I. Wernström[1], Y. Tarakonov[1], A. Erichsen Andersson[2], M. Karlsteen[1]
[1]Department of Applied Physics, Chalmers University of Technology, Göteborg, Sweden
[2]Sahlgrenska University Hospital, Department of Anesthesia, Surgery and Intensive Care, Göteborg, Sweden

Patients undergoing surgery are sensitive to infections. The operation staff may spread 10^4 particles per person per minute, of which ten percent are presumed bacteria-carrying. We visualize the influence of the personnel on the air and particle flows for the two most common ventilation ... Read More

Multiphysics Simulation of a Circular-Planar Anode-Supported Solid Oxide Fuel Cell

K. Daneshvar[1], A. Fantino[1], C. Cristiani[1], G. Dotelli[1], R. Pelosato[1], M. Santarelli[2]
[1]Politecnico di Milano, Dipartimento di Chimica, Materiali e Ingegneria Chimica “G. Natta”, Milano, Italy
[2]Politecnico di Torino, Dipartimento di Energetica, Torino, Italy

A 2D isothermal axisymmetric model of an anode-supported Solid Oxide Fuel Cell (SOFC) has been developed. Also a parametric analysis to find the effect of important parameters on the cell performance has been done. This simulation has been carried out at 1 atm and 1073 K. The PEN ... Read More

Gravitational Collapse of Rectangular Granular Piles

M.H. Babaei[1], T. Dabros[2], S.B. Savage[3]
[1]Ocean, Coastal, and River Engineering, National Research Council of Canada, Ottawa, ON, Canada
[2]Natural Resources Canada, CanmetENERGY, Devon, AB, Canada
[3]Department of Civil Engineering & Applied Mechanics, McGill University, Montreal, QC, Canada

In this study, the dam-break type two-dimensional gravitational collapse of rectangular granular piles in air was numerically studied. The frictional behavior of the material was based on the von-Mises model with the Mohr-Coulomb yield surface leading to pressure and strain-rate ... Read More

Thermal Simulations of a LED Light Using COMSOL Multiphysics

M. Maaspuro[1]
[1]University of Turku, Turku, FInland

An experimental LED light composed of a multi-chip LED-module, a LED driver and an efficient heat sink, was investigated using COMSOL Multiphysics software and the Heat Transfer Module. In an LED light heat is mainly generated in the LEDs but some amount of heat is generated also in the ... Read More

COMSOL Based Multiphysics Analysis Of Surface Roughness Effects On Capacitance In RF MEMS Varactors

D. Mondal[1], R. Mukherjee[2], D. Mukherjee[1], and C. RoyChaudhuri[1]
[1]Department of Electronics and Telecommunication Engineering, Bengal Engineering and Science University Shibpur, Howrah, West Bengal, India
[2]School of VLSI Technology, Bengal Engineering and Science University Shibpur, Howrah, West Bengal, India

In this paper, the effects of roughness in the surfaces of the plates caused due to nonuniform etching during their release and/or due to defects in the original wafer on the capacitance in RF-MEMS parallel plate varactors are analyzed. Capacitance extraction due to surface roughness has ... Read More

Numerical Analysis of Propeller-induced Low-frequency Modulations in Underwater Electric Potential Signatures of Naval Vessels in the Context of Corrosion Protection Systems

D. Schaefer[1], J. Doose[2], A. Rennings[1], and D. Erni[1]
[1]General and Theoretical Electrical Engineering (ATE), Faculty of Engineering, University of Duisburg-Essen, Duisburg, Germany
[2]Technical Center for Ships and Naval Weapons (WTD 71), Bundeswehr, Eckernförde, Germany

Since October 2009 the laboratory of ATE has carried out collaborative research with the WTD 71 that aims for prediction, reduction and optimization of so-called underwater electric potential (UEP) signatures. COMSOL is used to simulate potential distributions in the context of impressed ... Read More

Multiphysics Process Simulation of the Electromagnetic-Supported Laser Beam Welding

M. Bachmann, V. Avilov, A. Gumenyuk, and M. Rethmeier
BAM Federal Institute for Materials Research and Testing
Berlin, Germany

The article deals with the magnetically-supported high-power full-penetration laser beam welding of aluminum. A stationary simulation was conducted accounting for the effects of natural convection, Marangoni convection and solid-liquid phase transition as well as an electromagnetic ... Read More

Impact Simulation of Extreme Wind Generated Missiles on Radioactive Waste Storage Facilities

G. Barbella[1]
[1]Sogin SpA, Roma, Italy

The structural design of temporary storage facilities for radioactive waste generally requires the fulfillment of highly severe performance criteria if compared to conventional buildings. This work focuses on the study of the behavior of a steel door subject to the impact of extreme wind ... Read More

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