# Application Gallery

The Application Gallery features COMSOL Multiphysics® tutorial and demo app files pertinent to the electrical, structural, acoustics, fluid, heat, and chemical disciplines. You can use these examples as a starting point for your own simulation work by downloading the tutorial model or demo app file and its accompanying instructions.

Search for tutorials and apps relevant to your area of expertise via the Quick Search feature. To download the MPH-files, log in or create a COMSOL Access account that is associated with a valid COMSOL license. Note that many of the examples featured here can also be accessed via the Application Libraries that are built into the COMSOL Multiphysics® software and available from the File menu.

### Modeling Deforming Meshes

This presentation and series of models show how to use the Deformed Mesh interfaces to model small and large translations and rotations of objects. A more detailed description of these models can be seen in the blog post [Model Translational Motion with the Deformed Mesh Interfaces](https://www.comsol.com/blogs/model-translational-motion-with-the-deformed-mesh-interfaces/) ... Read More

### The Magnus Effect

The Magnus effect explains the curl that soccer players can give the ball, resulting in the enjoyable goals that we can see in every FIFA World Cup™. This model looks at the Magnus effect in the laminar and turbulent flow regimes for transient and stationary flows. It also discusses ... Read More

### Thermal Impact of a Borehole Heat Exchanger Array

This model shows how to compute an array of borehole heat exchangers (BHEs) for shallow geothermal energy production. The BHEs are simplified as cylindrical heat sinks with a uniform heat extraction rate. The array is embedded into a layered subsurface model with groundwater flow in one ... Read More

### Sedan Interior Acoustics

This is a model of the acoustics inside a sedan, that is inside a typical hard-top family car. The model sets up sources at loudspeaker locations as well as impedance conditions to model soft absorbing surfaces for the seats, carpet, and roof lining. The model results in plots of the ... Read More

### Modeling of Material Heating via the Beer-Lambert Law

This example exemplifies how to model the Beer-Lambert law using the core functionality of COMSOL Multiphysics. A more detailed description of the phenomenon and the modeling process can be seen in the blog post "[Modeling Laser-Material Interactions with the Beer-Lambert Law](https://www.comsol.com/blogs/modeling-laser-material-interactions-with-the-beer-lambert-law/) ... Read More

### Busbar, AC Analysis

This is a busbar configuration with an AC analysis. The configuration is similar to the introductory tutorial in the book Introduction to COMSOL Multiphysics. However, two conductors are added to represent a more realistic case of magnetic fields surrounding the busbar. The results ... Read More

A Chladni plate is a metal plate that is covered in sand and subjected to vibrations. At certain frequencies, the vibrations produce standing waves, resulting in sand patterns formed on the plate. The vibrations are either formed from a violin bow at the side of the plate or a wave ... Read More

In COMSOL Multiphysics®, you can easily define moving loads and constraints. These three models demonstrate three different approaches for modeling moving loads in the COMSOL® software, including: 1. A user-defined expression 2. A text file of positions over time 3. An imported ... Read More

### Switched Reluctance Motor

Switched reluctance motors work on the principle of reluctance torque. The stator and rotor will interact so as to minimize the reluctance for the flux path. This application simulates the behavior of the motor when the stator winding is excited with a step voltage and the rotor being ... Read More

### Shape Optimization of a Capacitor Design

This example exemplifies how to optimize the design of a capacitor through optimization. A more detailed description of the phenomenon and the modeling process can be seen in the blog post "[Changing the Dimensions of a Model Using Shape Optimization](https://www.comsol.com/blogs/changing-the-dimensions-of-a-model-using-shape-optimization/) ... Read More

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