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Electrical Blog Posts

Modeling with Linearly Polarized Plane Waves

March 20, 2015

COMSOL Multiphysics version 5.0 introduced users to a new background field feature designed for linearly polarized plane waves. Explore the use of this new feature with an example of polarization-dependent scattering from our Model Gallery.

Modeling Current Distributions in a Molten Salt Electro-Refiner

March 11, 2015

Today, we welcome a new guest blogger, Alexandre Oury of SIMTEC. He discusses the analysis of current distributions in a molten salt electro-refiner. In a webinar highlighting electrochemical recycling processes, SIMTEC presented a computational approach for predicting current distributions in a molten salt electro-refiner. The three main types of current distribution (primary, secondary, and tertiary) were treated, with a particular emphasis on the first two types. Using COMSOL Multiphysics, we implemented primary and secondary current distributions in an electrolysis cell.

Ports and Lumped Ports for Wave Electromagnetics Problems

March 9, 2015

When using the COMSOL Multiphysics software to simulate wave electromagnetics problems in the frequency domain, there are several options for modeling boundaries through which a propagating electromagnetic wave will pass without reflection. Here, we will look at the Lumped Port boundary condition available in the RF Module and the Port boundary condition, which is available in both the RF Module and the Wave Optics Module.

Using Numeric TEM Ports in Your Modeling Processes

March 5, 2015

COMSOL Multiphysics version 5.0 introduced users to an improved “Numeric TEM port” feature for transmission lines. This feature includes enhanced functionality, utilizing the techniques behind the calculation of impedance in 2D models and applying them in 3D instances.

Tips and Tricks for Modeling Induction Furnaces

March 4, 2015

Today, we are pleased to introduce a new guest author, Vincent Bruyere of SIMTEC, who shares insight into the modeling of induction furnaces. Induction heating has become an important process in many applications, from cooking meals to manufacturing. It is valued for its precision and efficiency along with being a non-contact form of heating. In this guest post, I will describe how to build an induction furnace model in COMSOL Multiphysics and demonstrate how it can enhance your design.

Using Degeneracy Breaking to Design a MEMS Biosensor

February 12, 2015

In the paper “Degeneracy Breaking, Modal Symmetry and MEMS Biosensors”, which was presented at the COMSOL Conference 2013 in Rotterdam, researchers experiment with using material and geometric symmetry breaking to design a MEMS biosensor.

Thermodynamic Equilibrium of Plasmas

February 10, 2015

Plasmas can exhibit a large variety of properties. There are plasmas with high and low ionization degrees, as well as those with high and low pressures and hot and cold temperatures. Different equations and modeling approaches are necessary for each kind of plasma. This blog post gives an overview of the different plasma types and shows when to use which of the interfaces available in the Plasma Module.

Enhancing the Design of Biconical Antennas with Simulation

February 4, 2015

When undergoing testing for electromagnetic compatibility compliance, many products rely on biconical antennas. In order to help with this testing, it is important that these antennas possess broadband characteristics. We explore how simulation can help you ensure this.


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