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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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Finite Element Model based Optimization of Pulsed Eddy Current Excitation Rise Time

N. N. Bharadwaj [1], V. Arjun [1], B. Purnachandra Rao [1]
[1]Indira Gandhi Centre for Atomic Research, Kalpakkam, India

Non-destructive Evaluation (NDE) techniques are widely used for early detection of defects in engineering components without impairing their future usefulness. Among them, Eddy Current (EC) technique is used for detection of defects in electrically conducting materials and it is known ... Read More

Analysis of an Inductive Proximity Sensor

A. Frey [1], I. Kuehne [2], R. Großmann [1], T. Frommelt [1], L. Fromme [3], T. Koch [4],
[1] Augsburg University of Applied Sciences, Augsburg, Bavaria, Germany
[2] Heilbronn University, Heilbronn, Germany
[3] Bielefeld University of Applied Sciences, Bielefeld, Germany
[4] COMSOL Multiphysics GmbH, Göttingen, Germany

Today, 90 percent of automation sensors are binary proximity detectors. Besides capacitive and optical types, inductive proximity sensors are essential for industrial applications. Compared to their mechanical counterparts, they offer almost ideal properties as contact-free and wear-free ... Read More

Simulation of Eddy Current Non Destructive Testing using COMSOL Multiphysics®

A. Kyrgiazoglou [1], T. Theodoulidis [1],
[1] Department of Mechanical Engineering, University of Western Macedonia, Kozani, Greece

Nondestructive Testing (NDT) refers to a wide group of methods used in industry to evaluate the properties of a material, component or system without causing damage. These include radiography, ultrasound, electromagnetic and visual, among others. Eddy-current testing (ECT) is one such ... Read More

Thermal Simulation of Breast Tumors Using 3D Scans of Breast Cancer Patients

F. Gonzalez[1], J. Rios[2], A. Benitez[2]
[1]Universidad Autonoma de San Luis Potosi, Mexico
[2]HIGIA Inc, Mexico

Temperature changes in the body have been recognized as an indicator of illness for centuries and localized temperature variations due to inflammatory or ischemic events are common in a great variety of diseases. In the case of cancerous breast tumors the increased cell growth rate ... Read More

A Study of the Effects of Mounting Supports, and Dissipation on a Piezoelectric Quartz Double-Ended Tuning Fork Gyroscope

G. Choi[1], Y. Yong[1]
[1]Rutgers University, New Brunswick, NJ, USA

A COMSOL model of a piezoelectric quartz double ended tuning fork gyroscope was implemented. The gyroscope has two detection modes; the first mode detects the angular velocity about a z-axis perpendicular to the tuning fork plane (x-y plane), while the second mode detects the angular ... Read More

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 Analysis of Planar Microcoil Based Induction-balance Magnetic MEMS Sensor

Krishnapriya S¹, Suja K J², Rama Komaragiri³
¹Department of ECE. Muthoot Institute of Technology, India
²NIT Calicut, Calicut, Kerala India
³Bennett University, Greater Noida, Uttar Pradesh, India

Two transmitting planar microcoils (TX1, TX2) and one receiving microcoil (RX) are employed as shown in Fig.1 formed in induction-balance configuration. RX-Coil is positioned in such a way to achieve primary field suppression in RX-Coil’s region. Meaning, a magnetic cavity is created in ... Read More

Two-Dimensional FEM Simulation of Ultrasonic Wave Propagation in Isotropic Solid Media using COMSOL

B. Ghose[1], K. Balasubramaniam[2], C.V. Krishnamurthy[3], and A.S. Rao[1]
[1] High Energy Materials Research Laboratory, Pune, Maharashtra, India
[2] Center for Non Destructive Evaluation, Department of Mechanical Engineering, IIT Madras Chennai, Tamil Nadu, India
[3] Department of Physics, IIT Madras,Chennai, Tamil Nadu, India

Ultrasonic Testing (UT) is one of the important Non-Destructive Evaluation (NDE) technique widely used for characterisation of materials as well as detection and characterisation of flaws present in the material used in various industries. There are many different important materials ... Read More

Topology Optimization of a Gaseous Photoacoustic Spectroscopy Cell Using COMSOL Multiphysics®

R. Haouari [1], V. Rochus [2], L. Lagae [1], X. Rottenberg [2],
[1] Imec & KU Leuven, Leuven, Belgium
[2] Imec, Leuven, Belgium

It is known that photoacoustic spectroscopy shows the highest signal-to-noise ratio compared to other spectroscopy techniques. This is due to an orthogonal detection scheme: while exciting with light we monitor soundwaves. In gaseous phase, the use of an acoustic chamber called cell ... Read More

Dynamic Observation of Magnetic Particles in Continuous Flow Devices by Tunneling Magnetoresistance Sensors

A. Weddemann[1], A. Auge[1], F. Wittbracht[1], C. Albon[1], and A. Hütten[1]

[1]Department of Physics, Thin Films and Physics of Nanostructures, Bielefeld University, Bielefeld, Germany

Dynamic measurement of magnetic particles in continuous flow devices is made very difficult by the limitations imposed by the sensors themselves. Thus, certain sensor layouts are restricted to either number sensitive or spatial resolutive measurements of magnetic particles. We ... Read More

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