Comparing Two Interfaces for High-Frequency Modeling

Andrew Strikwerda | May 26, 2016

It is always important to choose the correct tool for the job, and choosing the correct interface for high-frequency electromagnetic simulations is no different. In this blog post, we take a simple example of a plane wave incident upon a dielectric slab in air and solve it in two different ways to highlight the practical differences and relative advantages of the Electromagnetic Waves, Frequency Domain interface and the Electromagnetic Waves, Beam Envelopes interface.

Bernt Nilsson | May 25, 2016

Every year, the COMSOL Conference makes several stops around the world, bringing together the COMSOL community for a chance to connect, learn, and innovate. The COMSOL Conference 2016 promises to deliver these same elements, with additional learning opportunities available. Learn more about what to expect at this year’s conference, while hearing about the experiences of some of our past attendees.


Bridget Cunningham | May 23, 2016

In various engineering fields, studying acoustic reflection and absorption is an important point of consideration. Simulation is a valuable tool for performing such analyses, helping to better explain how sound waves interact with their surrounding surfaces. Today, we’ll look at how the Application Builder is extending the reach of such simulation capabilities by using the example of acoustic reflections off a water-sediment interface.

Brianne Costa | May 18, 2016

Think about the “ideal” wireless network. Data would download at ultrafast rates. We could be connected anywhere in the world and expect quality performance every time we use our devices. An ideal wireless network would be, above all, reliable — no dropped calls, undelivered messages, or waiting for a web page to open. To meet the specific performance requirements of this ideal network, 5G, there are certain RF designs that engineers can consider to transform such technology into a reality.

Bridget Paulus | May 16, 2016

When an electronic device overheats, it risks starting a fire. Cooling components, such as heat sinks, are designed to prevent this, but can’t always keep up with advancing technology. Simulation offers a solution by illustrating how well various heat sink designs conduct heat and how adding elements like manifold microchannels (MMC) improves performance. Today, we’ll explore how an MMC heat sink operates with simulation.

Aditi Karandikar | May 11, 2016

Lasers, focused beams of photons of a single wavelength, find use in a wide variety of applications today — from noninvasive surgeries and fiber optic communication to material processing and even DVD players. Let’s see how a research team from Lawrence Livermore National Laboratory (LLNL) used the power of multiphysics simulation to investigate laser-material interaction to avoid the damage of optics internal to high-power laser systems.

Caty Fairclough | May 24, 2016

The magnetostrictive effect causes magnetic materials to change their shape when a magnetic field is applied. Materials that exhibit such behavior are used in a range of devices, from loudspeakers to actuators. In order to analyze one type of device, a magnetostrictive transducer, researchers from ETREMA Products, Inc. performed single-physics and multiphysics simulation studies in COMSOL Multiphysics. See how the flexible nature of the software enabled the team to study various aspects of the device and optimize its overall design.

Nandita Roche | May 19, 2016

Maximizing the efficiency of the learning process, while keeping students engaged — this is the common goal that professors hope to achieve in any course. In the realm of physics- and engineering-based courses, simulation apps are helping to strike such a balance by introducing students to complex concepts in a simplified format. Here, we’ll take a look at some of the innovative ways that university professors are utilizing apps within the classroom.

Caty Fairclough | May 17, 2016

Tubular reactors are commonly used in the chemical industry, where they help with continuous large-scale production. To accurately analyze these devices, we can simulate the tubular reactor’s dissociation process. In this blog post, we compare isothermal and nonisothermal simulation studies. Such studies showcase multiple helpful features from the Chemical Reaction Engineering Module that you can use in your own simulations.

Caty Fairclough | May 12, 2016

Dorothy Crowfoot Hodgkin is a Nobel Prize-winning scientist whose research advanced the field of X-ray crystallography and determined the structures of several important biochemical substances, including penicillin, vitamin B12, and insulin. Today, on the anniversary of her birthday, we’ll take a look at her life and accomplishments.


Ed Fontes | May 10, 2016

In the first part of this blog series, we focused on designing a user interface with an ordered and clear structure. Today, we discuss tips for designing apps with an enhanced workflow and user experience. Learn about how to improve user workflow in your simulation app through structure, tooltips and warning messages that provide information, and more.


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