Sergei Yushanov

Exploring Sound Absorption Through Acoustic Metamaterials

The fast-growing area of acoustic metamaterials, specifically those composed of subwavelength periodic artificial structures with specific designs, has drawn significant research attention. In this article, we compare acoustic metamaterials to the limitations of conventional acoustic materials in sound absorption, and what we discover is acoustic metamaterials are far more effective for low-frequency applications. LIMITATIONS OF […]

Exploring Sound Absorption Through Acoustic Metamaterials Read More »

Useful Postprocessing Techniques Using the Graph Marker Tool

In this month’s Tips and Tricks video, I am going to demonstrate some useful postprocessing techniques using the “Marker” and “Graph Marker” subnodes. A very simple problem of acoustic scattering is used as an example, however, demonstrated postprocessing techniques can be used for any other physics. Click below to watch as I walk you through

Useful Postprocessing Techniques Using the Graph Marker Tool Read More »

User-Defined Material Library

User-defined materials provide the flexibility needed to design models using a combination of existing material properties and properties defined by the user. These material properties can also be included in a user-developed material database for easy access to frequently used materials. Users often spend significant time developing models with material properties not available in the

User-Defined Material Library Read More »

Radio Frequency Identification (RFID) Simulation in COMSOL

Radio Frequency Identification (RFID) technology has been around for more than 50 years and continues to evolve. Today, the technology uses electromagnetic fields to automatically identify, and track tags attached to both inanimate objects and living creatures. The great appeal of RFID technology is that unlike bar codes, it allows information to be stored and

Radio Frequency Identification (RFID) Simulation in COMSOL Read More »

Using Evaluation Operator in Post-Processing

Engineers post process their simulation results for reasons that range from better understanding their results to communicating those results to others.  Developing labels that clearly identify the conditions for a simulation communicates the critical input parameters for the plotted results. In this Tip and Trick, the simulation engineers at AltaSim will show a way to

Using Evaluation Operator in Post-Processing Read More »

Electromagnetic Wave Polarization in 2D Geometry

An electromagnetic wave consists of a coupled oscillating electric field and magnetic field which are always perpendicular to each other. By convention, the “polarization” of electromagnetic waves refers to the direction of the electric field. In 3D geometry, arbitrary polarization is naturally defined by the prescribing the directions of all three components of the electric

Electromagnetic Wave Polarization in 2D Geometry Read More »

Selection of Exterior Boundaries

At virtually every step of the model creation process, you need to select and apply materials, physics boundary conditions, and other settings to your model geometry. Bookkeeping of these settings can be challenging, especially when you re dealing with large, complex geometries and multiple physics interfaces. In COMSOL Multiphysics, Selections provides a tool to organize your model

Selection of Exterior Boundaries Read More »

How to Export Plot Data in COMSOL Multiphysics

Post processing is the last of the five primary steps of simulation development. This step represents the payoff from all the hard work of the previous steps, and it drives the deeper understanding of the design that engineers obtain though simulation. A simulation engineer can significantly improve their understanding, and better communicate that understanding, when

How to Export Plot Data in COMSOL Multiphysics Read More »