Blog Posts Tagged Technical Content
![](http://cdn.comsol.com/wordpress/sites/1/2018/09/COMSOL_Blog_OG_Electrical-245x195.png)
The Nonparaxial Gaussian Beam Formula for Simulating Wave Optics
Here’s your introduction to the nonparaxial gaussian beam formula, which is used for simulating wave optics problems in COMSOL Multiphysics®.
![](http://cdn.comsol.com/wordpress/sites/1/2018/06/COMSOL_Blog_ModelImgs_LoudspeakerDriverTransient_ThumbnailImg.png)
How to Perform a Nonlinear Distortion Analysis of a Loudspeaker Driver
For a thorough and complete analysis of a loudspeaker driver design, acoustics engineers need to perform nonlinear time-domain studies in addition to frequency-domain studies.
![](http://cdn.comsol.com/wordpress/sites/1/2019/05/COMSOL_Blog_OG_Mesh-245x195.png)
Your Guide to Meshing Techniques for Efficient CFD Modeling
Learn how to use a variety of meshing tools for your CFD analyses, including mapped mesh, unstructured quad mesh, triangular mesh, tetrahedral mesh, swept mesh, boundary layer mesh, and more.
![](http://cdn.comsol.com/wordpress/sites/1/2018/09/COMSOL_Blog_OG_General-245x195.png)
How to Use the Cluster Sweep Node in COMSOL Multiphysics®
Keep your cluster admin happy by using the Cluster Sweep node in COMSOL Multiphysics® to optimize the parallelization of parametric computations on clusters.
![](http://cdn.comsol.com/wordpress/sites/1/2019/05/COMSOL_Blog_OG_Mesh-245x195.png)
How to Set Up a Mesh in COMSOL Multiphysics® for CFD Analyses
As a flow mechanics specialist preparing a mesh for CFD analysis, the geometry supplied by a CAD team is often exactly what you do not want. So, what do you do?
![](http://cdn.comsol.com/wordpress/sites/1/2018/09/COMSOL_Blog_OG_General-245x195.png)
How to Create Animations Along the Azimuthal Direction for 3D Models
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.
![](http://cdn.comsol.com/wordpress/sites/1/2018/06/COMSOL_Blog_ModelImgs2_SoccerBall_ThumbnailImg-1.png)
Terminal Velocity, Drag Coefficients, and FIFA World Cup™ Predictions
Is it possible to predict the winners of the FIFA World Cup™? We forgo consulting a psychic and instead analyze the terminal velocity and drag coefficients of different balls with CFD simulation.
![](http://cdn.comsol.com/wordpress/sites/1/2018/05/COMSOL_Blog_ModelImgs_2phaseFSI_ThumbnailImg.png)
Modeling Free Surfaces in COMSOL Multiphysics® with Moving Mesh
You can model free liquid surfaces that do not undergo topology changes using moving mesh functionality in the COMSOL® software. Here’s a thorough guide on how to do so.