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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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Bengaluru 2023

Munich 2023

AC/DC Electromagneticsx

Modelling of Electrolyte-Gated Organic Field-Effect Transistor

N. Delavari[1], K. Tybrandt[1], G. Mattana[2], B. Piro[2], V. Noël[2], I. Zozoulenko[1]
[1]Linköping University, Sweden
[2]Paris Diderot University, France

Electrolyte-gated organic field-effect transistors differ from conventional OFETs by using an electrolyte as the gate insulating material. Due to a high permittivity of the electrolyte, EGOFETs tend to have a higher capacitance than their conventional non-electrolytic counterparts. ... Read More

Through Metal Communication for Using in Downhole Tool

M. Koraei[1], M. Hjelstuen[1]
[1]SINTEF, Norway

For a specific project in downhole tools for oil and gas wells, we have to weld the tool before shipping and the tool must be programmed during installation on the rig location. For this reason we decided to use magnetic communication and power transmission as well. We have used COMSOL ... Read More

Validation of the Analytical Approximation for Induction Heating Ionic Solutions Using COMSOL Multiphysics®

M. Taylor[1]
[1]Perpetual Research Consultancy Ltd, United Kingdom

New methods of generating high-frequency magnetic fields of tens or even hundreds of millitesla at frequencies exceeding 2 MHz are allowing important new applications for induction heating. These include heating low conductivity ionic solutions in situations where electric or ... Read More

Time Domain Analysis of Dielectric Relaxation

J. Ransley[1], A. Kermani[1], E. Schmitt[1], N. Elabbasi[1]
[1]Veryst, USA

When a material is subjected to a sudden change in electric field, the polarization of the material takes a finite time to respond – this phenomenon is referred to as dielectric relaxation. Dielectric relaxation is critical to understanding the important analytic technique of impedance ... Read More

Simulation of a Permeability Probe to Estimate Hot Corrosion Zone Size

W. Li[1], Z. Ouyang[2], A. Kermani[1], N. Elabbasi[1], W. Brindley[2], A. Debicarri[2]
[1]Veryst, USA
[2]Pratt & Whitney, USA

Sulfidation corrosion of Nickel based super-alloy turbine blades is one form of corrosion that adversely affects blade performance. It results in a depletion zone involving magnetic corrosive byproducts with a high relative permeability [1]. Magnetometers are sometimes used in non ... Read More

Modeling Electrotaxis of Stem Cells to Stroke Sites in the Human Brain

K. Carlson[1], S. Dokos[2], T. Pfluger[3]
[1]BIDMC/Harvard Medical School, USA
[2]University of New South Wales, Australia
[3]Juno Biomedical, Inc., USA

Research <em>in vitro</em> and in small animals has shown electric fields (EFs) induce directional migration in stem cells along an electrical potential gradient, a process known as cell electrotaxis, or cell galvanotaxis1,2. We built a first-pass COMSOL model to identify ... Read More

A First Principles Approach to Electron Beam Lithography using COMSOL Multiphysics® Simulation Software

R. Pryor[1]
[1]Pryor Knowledge Systems, Inc., USA

Abstract: Line resolution, uniformity and focusing are the three (3) most important factors in the use of electron-beam lithography to form either high resolution masks or direct-write device etch patterns. This paper will present the observations and analyses made from a group of COMSOL ... Read More

Finite Element Analysis of TTFields in Brain Metastasis According to Various Types of Cerebral Edema

S. Pisati[1], P. San[1], E. Lok[1], E. Wong[1]
[1]Beth Israel Deaconess Medical CEnter, USA

Background: TTFields are being investigated for treatment of brain metastasis. Although vasogenic edema is the most common type of associated cerebral edema, other forms of edema might arise within the brain due to prior treatment or other confounding effects. Therefore, we seek to ... Read More

Application of an Electromagnetic Analogy in the Simulation of a Problem in Classical Hydrodynamics

J. Russell[1]
[1]Florida Institute of Technology, USA

The present author’s specialty is Aerodynamics, a field in which problems in unbounded fluid domains are common. The COMSOL Multiphysics® simulation software's support of Infinite Elements is attractive as a tool for addressing such problems. Be that as it may, neither the COMSOL ... Read More

Estimating Parasitic Capacitances in MEMS Microphones using Finite Element Modeling

S. Shubham[1], M. Nawaz[1]
[1]KNOWLES ELECTRONICS, USA

MEMS microphones consist of a conductive backplate and a conductive flexible membrane. The backplate and the membrane are at a certain distance from each other to be interpreted as parallel plates of a capacitor. When a bias voltage is applied to the electrodes, membrane deflection ... Read More

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