# 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.

### Creating a Fluid Domain Inside a Solid Structure

The majority of 3D CAD files include only the geometry of the product to be manufactured. For finite element analysis, however, you find yourself often in a situation where additional geometry is needed, for example, to analyze the flow inside or outside a device. This tutorial, ... Read More

### Wheel Rim Defeaturing Tutorial Series

This tutorial series demonstrates three different approaches to remove small geometric entities from an imported 3D CAD geometry of a wheel rim: the Repair operation, the Defeaturing tools, and the Remove Details operation. Use Repair to automatically find and remove small entities ... Read More

### Two-Pole Three-Phase Induction Motor

This model illustrates how to compute the torque of a three-phase squirrel-cage induction motor at various speed. The torque is computed by averaging 2D calculation performed at several location along the induction motor. The full geometry is created in PTC® Creo® ParametricTM and ... Read More

### Electrical Heating in a Busbar Assembly

This tutorial model of the Joule heating effect in a busbar demonstrates how to synchronize an assembly between Creo Parametric and COMSOL, how to modify the geometry from COMSOL, and how to run a geometric parametric sweep. Read More

### Geometric Parameter Optimization of a Tuning Fork

This model computes the fundamental eigenfrequency and eigenmode for a tuning fork that is synchronized from Creo Parametric via the LiveLink interface. The length of the fork is then optimized so that the tuning fork sounds the note A, 440 Hz. Read More

### Pacemaker Electrode

This model, dealing with the current and potential distribution around one pair of electrodes, demonstrates how to synchronize and modify geometry in Creo Parametric by using the LiveLink interface. Read More

### Geometric Parameter Optimization of a Bracket

This tutorial minimizes the mass of a bracket that is synchronized from PTC® Creo® Parametric™ via the LiveLink™ interface. There are limits both for the lowest natural frequency, and for the maximum stress in a static load case. The size and position for a number of geometrical ... Read More