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Equation-Based Modeling Blog Posts

Modeling the Spread of COVID-19 with COMSOL Multiphysics®

April 7, 2020

From susceptible to exposed and infected to recovered: See how numerical modeling can help us understand the dynamics of the COVID-19 pandemic and how it spreads.

How to Simulate Control Systems Using the PID Controller Add-In

January 9, 2020

A PID controller can be used in a variety of industries. This blog post demonstrates how a PID controller add-in can be easily incorporated in two simulation examples.

Defeating Giant Movie Monsters Using Mathematical Modeling

August 5, 2019

The predator-prey equation can predict how we’d fare in a monster invasion, as well as real-world biology and ecology scenarios like shark overpopulation and tumor movement.

Optimizing PID Controller Performance with COMSOL Multiphysics®

June 11, 2019

PID controllers involve three components that must work together simultaneously, and it can be challenging to get each of them just right. That’s where process control simulation comes in.

Introduction to Numerical Integration and Gauss Points

May 1, 2019

In this comprehensive blog post, we go over the theory behind numerical integration, Gaussian quadrature, Gauss points, weak contributions, and much more.

Simulation Applications Enable Digitalization at ABB Traction Motors

February 26, 2019

Here’s a real-world example of optimizing R&D processes with COMSOL Server™: At ABB Traction Motors, engineers use simulation applications to analyze CFD and heat in electric motor designs.

3 Approaches to Modeling Moving Loads and Constraints in COMSOL®

October 22, 2018

Learn 3 ways to model moving loads and constraints in COMSOL Multiphysics®: using variables, interpolation functions, and paths imported from CAD geometries.

Nonstandard Constraints and the Power of Weak Contributions

October 16, 2018

For a flexible and physics-independent way to extend the applicability of the COMSOL Multiphysics® software, you can implement nonstandard constraints using the so-called weak contributions.


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