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Plasma Physics Blog Posts

Micromagnetic Simulation with COMSOL Multiphysics®

September 24, 2021

A guest blogger from Fudan University in China used the Physics Builder in COMSOL Multiphysics to create a “Micromagnetics Module” for performing micromagnetic simulations.

How to Analyze Turbomolecular Pumps with COMSOL Multiphysics®

January 12, 2021

Modeling gas flow in a turbomolecular pump calls for specialized numerical methods, because at such low pressures, the gas molecules rarely collide with each other.

Computational Electromagnetics Modeling: Which Module to Use?

July 28, 2020

If you work with a particular electromagnetic device or application area, you might be wondering which module in the COMSOL product suite is right for you. Keep reading for a comprehensive intro.

Global Modeling of a Non-Maxwellian Discharge in COMSOL®

November 19, 2018

Keep reading for a demonstration of how to model a non-Maxwellian discharge with the Boltzmann equation in the two-term approximation using COMSOL Multiphysics®.

Introduction to Plasma Modeling with Non-Maxwellian EEDFs

July 5, 2017

Modeling plasma that has a non-Maxwellian electron energy distribution function (EEDF) results in a catch-22. However, this issue can be overcome by building a simulation application.

A Multilevel Approach to Modeling Planar Discharge in CO2 Lasers

April 24, 2017

Check out the multilevel approach to plasma modeling used by a researcher in the laser industry, who used the flexibility and functionality of COMSOL Multiphysics® to optimize a gas laser design.

MIT’s PSFC Designs a Tokamak to Survive Plasma Disruptions

October 17, 2016

Developing a device that generates nuclear fusion would provide a nearly limitless amount of clean energy on Earth. But while work on thermonuclear fusion began in the 1950s, engineers are still trying to make this goal a reality. One approach has been to use magnetic confinement devices known as tokamaks. See why a group of engineers at MIT’s Plasma Science Fusion Center (PSFC) turned to simulation to address a key challenge in tokamak design: instability due to plasma disruptions.

Control Current and Voltage Sources with the AC/DC Module

February 25, 2016

If you’ve ever worked with the Terminal boundary condition in COMSOL Multiphysics, you know that this electrical boundary condition can apply a current or voltage, among other options. But did you know that you can also dynamically switch between excitation types during a transient simulation? This is useful if you are trying to model a current- or voltage-limited power supply, for example. Today, we will look at how to implement such a switching behavior.


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