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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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AC/DC Electromagnetics

Conductivity Estimation of Breast Cancer Using COMSOL® Modeling of Microwave Scattering and Frechet Mean Estimate of Covariance

A. Jeremic[1], E. Khoshrowshahli[2]
[1]Electrical & Computer Engineering, McMaster University, Hamilton, ON, Canada
[2]Biomedical Engineering, McMaster University, Hamilton, ON, Canada

Breast cancer detection is one of the most important problems in health care and it is second most frequent cancer according to WHO. It is recommended that women over fifty or even younger in some cases do a screening test every two years. Besides clinical breast examination, there are ... Read More

Finite Element Modeling of Conventional and Pulsed Eddy Current Probes for CANDU® Fuel Channel Inspection

M. Luloff[1], J. Morelli[1], T. W. Krause[2]
[1]Department of Physics, Engineering Physics & Astronomy, Queen's University, Kingston, ON, Canada
[2]Department of Physics, Royal Military College of Canada, Kingston, ON, Canada

A pulsed Eddy Current (EC) probe, using the transient response to a stepped voltage is being developed for in-reactor inspection of CANDU® fuel channels. Pulsed EC has the advantage of generating a spectrum of discrete frequencies, allowing the simultaneous collection of data from a ... Read More

AC Electrothermal Characterization of Doped-Si Heated Microcantilevers Using Frequency-Domain Finite Element Analysis

K. Park[1], S. Hamian[1], A. M. Gauffreau[2], T. Walsh[2]
[1]Mechanical Engineering Department, University of Utah, Salt Lake City, UT, USA
[2]Department of Mechanical, Industrial & Systems Engineering, University of Rhode Island, Kingston, RI, USA

This work investigates the frequency-dependent electrothermal behaviors of freestanding doped-silicon heated microcantilever probes operating under the periodic (ac) Joule heating. The transient heat conduction equation for each component (i.e., the low-doped heater region, the high ... Read More

Design of Precision Magnetic Fields for Fundamental Neutron Symmetries

M. Higginson-Rollins[1], C. Crawford[2]
[1]Department of Electrical & Computer Engineering, University of Kentucky, Lexington, KY, USA
[2]Department of Physics & Astronomy, University of Kentucky, Lexington, KY, USA

The traditionally magnetic design process involves guessing at a reasonable conductor geometry, using finite element analysis (FEA) software to calculate the resulting fields, and modifying the configuration iteratively to reach an acceptable solution. Taking the opposite approach, we ... Read More

Magnetorheological Fluid Based Braking System Using L-shaped Disks

M. Hajiyan[1], S. Mahmud[1], H. Abdullah[1]
[1]School of Engineering, University of Guelph, Guelph, ON, Canada

This paper presents a novel design of multi-disks Magnetorheological braking system (MR brake) for automotive application. Magnetic saturation in both electromagnetic core and MR fluid is considered in this paper. The electromagnetic analysis of the proposed configuration is carried out ... Read More

Tuning Sensitivity to Ectopeptidase Rates in the Rat Hippocampus Using Numerical Simulations

Y. Ou[1], S. Weber[1]
[1]University of Pittsburgh, Pittsburgh, PA, USA

We have created and optimized a multiphysics model in COMSOL Multiphysics® software that studies sensitivity to ectopeptidase rates in the rat hippocampus. Ectopeptidases are membrane-bound enzymes whose catalytic domains face the extracellular space (ECS) (Figure 1). They have ... Read More

Tri-Axial Square Helmholtz Coils System to Generate Uniform Magnetic Field Volume

A. F. Restrepo[1], E. Franco[1], C. R. Pinedo[1]
[1]Universidad del Valle, Cali, Valle del Cauca, Colombia

The study of the effects of magnetic field stimulation in biological systems require devices capable of generating homogenous magnetic fields and further guarantee a controlled and repeatable exposure to different samples involved in the experiment [1]. This work presents analysis and ... Read More

Simulation of a Polyimide Based Micromirror

A. Arevalo[1], S. Ilyas[2], D. Conchouso[1], I. G. Foulds[1,3]
[1]Computer, Electrical & Mathematical Sciences & Engineering Division (CEMSE), King Abdullah University of Science & Technology, Thuwal, Saudi Arabia
[2]Physical Sciences & Engineering (PSE), King Abdullah University of Science & Technology, Thuwal, Saudi Arabia
[3]School of Engineering, University of British Columbia - Okanagan, Vancouver, BC, Canada

The simulation of a micromirror using polyimide as the structural material is presented. The simulation was used to verify the initial design parameters and to explore the different characteristics of the electromechanical device. For simulation simplicity the electrodes are integrated ... Read More

The Geometrical Optimization of MSFL Pad Design by COMSOL Multiphysics® and Design of Experiments

T. Hao[1], J. M. Singer[1]
[1]GE Oil & Gas, Farnborough, UK

Introduction Micro-Spherically Focused Logging (MSFL) tool is a microresistivity open-hole logging tool designed to measure the resistivity of the flushed zone, a region of formation close to the borehole, independent of any mudcake on the borehole wall. Original designs of MSFL were ... Read More

Computation Model of Electrostatic Spraying in Agriculture Industry

M. Al-Mamury[1], W. Balachandran [1], H. Al-Raweshidy [1], N. Manivannan[1]
[1]Brunel University, Uxbridge, UK

Introduction: Agricultural chemicals such as pesticides are used to protect plants against insects and diseases. In this project, electrostatic spray is investigated with intelligent sensors for efficient use of pesticides. As a part of this project, COMSOL Multiphysics® model was ... Read More

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