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Equation-Based Modeling Blog Posts

Methods for Dealing with Numerical Issues in Constraint Enforcement

September 11, 2018

This post is helpful if you use equation-based modeling: Learn a variety of different methods for dealing with numerical issues when enforcing constraints in variational problems.

Specifying Boundary Conditions and Constraints in Variational Problems

September 7, 2018

In part 2 of a blog series on solving variational problems in COMSOL Multiphysics®, we discuss how to specify general boundary conditions and constraints.

Introduction to Modeling Soap Films and Other Variational Problems

September 4, 2018

In this introduction to a 5-part series, learn how to solve variational problems using equation-based modeling, which is useful for modeling soap films, catenary cables, light beams, and more.

Chasing Waves: The Story of John Scott Russell and the KdV Equation

May 9, 2018

It all started with a horse: Learn about the history and use cases for solitons, as well as the life and work of the naval architect behind the KdV equation: John Scott Russell.

Acoustic Topology Optimization with Thermoviscous Losses

February 28, 2018

A guest blogger from GN Hearing discusses including thermoviscous losses in the topology optimization of microacoustic devices, such as hearing aids, mobile phones, and metamaterial geometries.

3 Examples of Equation-Based Modeling in COMSOL Multiphysics®

December 20, 2017

What are the benefits of using equation-based modeling in your simulations? Here are 3 examples that demonstrate the use of this functionality.

How to Generate Randomized Inhomogeneous Material Data

June 20, 2017

Did you know there is a way to take randomized material data with specified statistical properties determined by a spectral density distribution and use it to generate and visualize results?

How to Generate Random Surfaces in COMSOL Multiphysics®

June 2, 2017

Get a comprehensive background and step-by-step guide to generating random surfaces in COMSOL Multiphysics®, such as rough surfaces and microstructures.