3M Canada Company, London, ON, Canada
Finite element analysis provides new insights into the electrical behavior of conducting adhesives. We show that at a contact between a spherical conducting particle and a flat conducting substrate the current distribution is non-uniform: the current is concentrated at the periphery of the contact. In practice, the current concentration has important implications. We further shed light on what ...
F. Dewarrat, L. Falco, A. Caduff, and M. Talary
Solianis Monitoring AG, Zürich, Switzerland
Impedance spectroscopy is a measurement technique that has been investigated in a wide variety of medical applications. An example is the measurement of the dielectric properties of the skin and underlying tissue using sensors placed in contact with human skin with capacitive fringing field electrodes. The aim of this work is to use finite element methods for optimizing the sensor design to ...
Teknova AS, Kristiansand, Norway
COMSOL Multiphysics has been applied to develop a model for inductive heating. A coarse, lumped model of the interior of a high temperature reactor is coupled to finite element models for the electromagnetic field, the temperature distribution outside the reactor, and mechanical stresses in the crucible. The model can be applied to study operational conditions, thermal stresses, or design details ...
Upper Austria University of Applied Sciences
This presentation deals with how COMSOL Multiphysics can be used in education. The presentation is performed by demonstrating various multiphysics examples, their setup, modeling approach, and solution. ------------------------------------------- Keynote speaker's biography: Dr. Mario Jungwirth has been a professor at the Upper Austria University of Applied Sciences since 2003. In 2001, he ...
W. H. A. Peelen, and W. M. G. Courage
TNO Built Environment and Geosciences, Delft, The Netherlands
This paper describes a model which simulates a stray current interface of underground steel structures through a traction power system, which causes accelerated corrosion.First preliminary calculations show that uncertainty in the soil resistivity and the train power consumption contribute most in the uncertainty in the maximum interference current density
H. Szambolics1, L. Buda-Prejbeanu2, J. C. Toussaint1,2, and O. Fruchart1
1Institut Néel, CNRS-INPG-UJF, Grenoble, France
2Laboratoire SPINTEC, CEA-CNRS-INPG-UJF, Grenoble, France
The imbalance between the four fundamental magnetic interactions (the magneto-crystalline anisotropy, the exchange and magnetostatic interactions, and the Zeeman coupling) is responsible for a very large diversity of magneticbehaviors that researchers try to explore anduse for technical applications (data storage,sensors, memories, medical imaging …).In this work, a finite element formalism ...
Quasi-static Analysis on the Effect of Metal Penetrating Depth into the Substrate in Microstriplines
S. Musa, and M. Sadiku
Prairie View A&M University Networking Academy (PVNA), Prairie View, TX, USA
The effect of metallization thickness on planar transmission lines plays an essential role in microwave integrated circuits and thin film technology, especially in the propagation characterization and the electric field distribution in the structures. The objective of this paper is to consider the planar transmission lines with finite thickness not penetrating and penetrating into isotropic ...
S. Barth, and S. Zimmermann
Drägerwerk AG & Co. KGaA, Lübeck, Germany
Ion mobility spectrometry provides fast detection of very low concentrations of chemical substances. Simple instrumentation combined with high sensitivity and high selectivity are the advantages of this technique. One well established field of application is the detection of hazardous compounds in air, such as chemical warfare agents, explosives and pollutants. A numerical model based on finite ...
Development of an On-Line Wall-Fouling Sensor for Pipeline Transportation of Heavy Oil-Water Mixtures
S. Rushd, and R.S. Sanders
Chemical & Materials Engineering Department, University of Alberta, Edmonton, AB, Canada
A beneficial method for transporting highly viscous hydrocarbons (e.g. heavy oil and bitumen) through a pipeline is known as Lubricated Pipe Flow (LPF). A major challenge for this technology is flow instability caused by the formation of a wall-coating of oil or the thinning and/or loss of the lubricating water layer in the pipe. This issue can be addressed by using capacitance sensors to measure ...
Sonsight Inc., Accokeek, MD, USA
The current paper describes how a properly chosen skew angle can be used to significantly decrease the amplitude of the high and/or low frequency cogging torque components. The approach is further demonstrated with the help of FE results from COMSOL Multiphysics. The numerical analyses incorporates a COMSOL model that is similar to a combination of two examples from the AC/DC Model Library: the ...