## Introduction to Numerical Integration and Gauss Points

##### Henrik Sönnerlind 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.

### Using the Port Boundary Condition in Acoustic Waveguide Models

##### Mads Herring Jensen April 25, 2019

By combining several Port boundary conditions, you can easily compute the transmission and insertion loss in exhaust and muffler systems. See more benefits of this feature for acoustics modeling.

### How to Create Custom Reports Using Report Templates

##### Magnus Ringh December 24, 2018

You can document and showcase your simulation setups and results with reports. To make this process more efficient, COMSOL Multiphysics® includes tools for creating easy-to-use report templates.

### How to Export (and Share) Your 3D Result Plots as glTF™ Files

##### Lars Gregersen November 15, 2018

Wow your project stakeholders by sharing your 3D COMSOL Multiphysics® results as glTF™ files. We show you how to export plots and share them in third-party graphics viewers.

### How to Create Animations Along the Azimuthal Direction for 3D Models

##### Mranal Jain June 4, 2018

Here’s a useful postprocessing trick for presenting your 3D modeling results: combine slice plots along the azimuthal direction in order to generate a nontrivial animation.

### A Simulation Color Table for Engineers with Color Vision Deficiency

##### Caty Fairclough December 27, 2017

Simulation results often use color to present data and emphasize certain takeaways, but what about engineers with color vision deficiency? Cividis is a color table designed specially for this.

### How to Create Graphs with Two Y-Axes in COMSOL Multiphysics®

##### Andrew Griesmer July 27, 2017

Did you know that you can add a second y-axis to a 1D plot to include two scales of values in your simulation results? This blog post details how and also includes a video demonstration.

### How to Generate Randomized Inhomogeneous Material Data

##### Bjorn Sjodin 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 Manage Multiple Solutions in COMSOL Multiphysics®

##### Magnus Ringh May 10, 2017

3 ways to manage multiple solutions in COMSOL Multiphysics®: Combine 2 solutions into 1, store the solutions in different data sets, or join the solutions to compare them.

### Exploiting Maximum Principles to Save Time and Resources

##### Temesgen Kindo May 9, 2017

By exploiting maximum principles in large and complex models, you will save time and computational resources without having to buy a bigger computer or leave your model to solve overnight.

### How to Postprocess Fields over Arbitrary Geometries

##### Walter Frei April 4, 2017

Check out this useful modeling trick: You can query the results of your model within an arbitrary geometric subregion by implementing an integration during postprocessing.