## 4 Methods to Account for Radiation in Participating Media

##### Nancy Bannach May 22, 2019

The discrete ordinates method, P1 approximation, Rosseland approximation, or the Beer–Lambert law: Which should you use to analyze heat transfer in participating media?

### Evaluating the Impact of Bearing Misalignment on Rotor Vibration

##### Bridget Paulus May 14, 2019

Bearings are found in devices ranging from MEMS and turbines to electric motors and even ships. How we account for a bearing’s misalignment (and the resulting rotor vibration) depends on its use.

### 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.

### Verification Model: Postbuckling Analysis of a Spherical Cap

##### Thomas Forrister April 16, 2019

Think about what happens to a soda or beer can when you crush it. This phenomenon is called buckling, in which compressive stress causes sudden failure in a structure.

### Calculating the Heat Transfer Coefficient for Flat and Corrugated Plates

##### Yogashree Bharath April 10, 2019

What is the heat transfer coefficient, and how do you calculate it? This blog post includes a theoretical background and demonstration of 2 examples in COMSOL Multiphysics®.

### Fine-Tuning the Design of Piezoelectric Transducers with Simulation

##### Mads Herring Jensen April 5, 2019

A variety of use cases and a variety of physics: Piezoelectric transducer designs need to account for electric currents, pressure acoustics, stress-strain, and acoustic-structure interaction.

### Modeling Heat Transfer in Thin Layers via Layered Material Technology

##### Claire Bost April 1, 2019

We answer some questions you may have about the Layered Material functionality in the COMSOL® software: What does it do? How do you update existing models? How do simulations benefit from it?

### Defying Gravity with a Realistic Acoustic Levitator Model

##### Thomas Forrister March 27, 2019

It’s not just science fiction: Objects really can levitate. 1 way this is possible is by using sound waves to lift and suspend particles midair. Simulation can broaden the use of this technology.

### Modeling Multi-Ply Materials with Composite Materials Technology

##### GuestEric Linvill March 26, 2019

In a follow-up to a previous blog post on paper mechanics modeling, Eric Linvill of Lightness by Design compares 3 methods of analysis for multi-ply materials such as paperboard.

### Modeling Fluid-Structure Interaction in Multibody Mechanisms

##### Soumya SS March 20, 2019

To model advanced FSI scenarios, such as swimming mechanisms or airflow around a wind turbine blade, you can use the Fluid-Structure Interaction, Pair multiphysics coupling.