Major News in COMSOL Multiphysics® Version 6.1

COMSOL Multiphysics® version 6.1 introduces new functionality for detached eddy simulation, thermal analysis of satellites, winding layouts for electric motors, and robust mechanical contact. A new interface enables the analysis of battery packs with several hundred cells. Simulation of acoustically driven flows is made possible by a new acoustic streaming interface. New mesh repair tools for the handling of misaligned models provide…

Bridging the Terahertz Gap with Simulation Software

Rather than coining the phrase “x-ray vision,” perhaps comic book writers should have called it “terahertz vision” instead. The precise blend of electromagnetic and material properties in the terahertz spectrum enables efficient applications such as simultaneous noncontact package inspection with spectroscopic characterization — to determine, for example, whether a package contains baking flour or an illegal or otherwise dangerous substance….

Designing Tidal Turbines That Are Safe for Marine Life

Creating clean energy alternatives for energy sources that generate greenhouse gas is crucial if we are to avoid excessive global heating and the rising climate crisis. A viable, renewable energy source are ocean tides, which, unlike solar and wind resources, are not weather dependent, making them predictable. Tidal energy can be harnessed by deploying tidal turbines into tidal streams. This…

Extracting Electrical Circuits from Electromagnetics

Simulations One of the common objectives of electromagnetics simulation is to extract lumped quantities that can be used in electric circuit simulations. Keep reading to get step-by-step instructions on how to perform such a task using the COMSOL Multiphysics® software… Read more

Modeling Graphene in High-Frequency Electromagnetics

Graphene and other 2D materials are the focus of intense research and application interests due to their promising properties. In this blog post, we are going to use the example of a graphene-based THz metamaterial perfect absorber to demonstrate how to model 2D materials accurately and efficiently in high-frequency electromagnetics. The discussed techniques are equally applicable to modeling other thin…

Analyzing Thermal Distribution in a Li-Ion Battery Pack

Lithium-ion (Li-ion) batteries are used to power a variety of devices, from toys and drones to cellphones and laptops to medical equipment and electric cars. To efficiently power such devices, the temperature distribution inside operating Li-ion batteries needs to be controlled, as deviation from optimal operating temperatures can cause a loss, or failure, in their performance. One way to analyze…