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.


Stiffness Analysis of a Communication Mast's Diagonal Mounting

Communication masts usually have a framework with a bolted triangular lattice design. The diagonals of the framework are assembled from several parts and welded together. When operating under a given wind load at a specific location, the antenna’s total rotation angle should stay below a certain limit to ensure uninterrupted communications. For the type of mast in this model, the engineers ...

Beam Subjected to Traveling Load

As an example of how to build an app using the Application Builder, this application simulates the transient response of a beam, or bridge, that is placed on several equidistant supports and is subjected to a traveling load. The purpose of the Beam Subjected to Traveling Load app is to analyze the structural response of a bridge when vehicles pass over it. Many of the bridge's parameters can be ...

Modeling the Behavior of a Thermostat

This example exemplifies how to model applications using the *Events* Interface where a thermostat is sumlated. A more detailed description of the phenomenon and the modeling process can be seen in the blog post "[Implementing a Thermostat with the Events Interface](https://www.comsol.com/blogs/implementing-a-thermostat-with-the-events-interface/)".

Lorenz Attractor

A Lorenz attractor can be described by a system of ordinary differential equations: the Lorenz system. In the early 1960s, Lorenz discovered the chaotic behavior of this system for certain parameter values and initial conditions. The solution, when plotted as a phase space, resembles the figure eight. This example uses the Dormand-Prince explicit method for solving the ODEs and a Point ...

Thermal Curing Simulation

This example exemplifies how to model thermal curing using the base package of COMSOL Multiphysics. A more detailed description of the phenomenon and the modeling process can be seen in the blog post "[Modeling the Thermal Curing Process]( https://www.comsol.com/blogs/modeling-the-thermal-curing-process/)".

Modifying Imported CAD Geometry with the Deformed Geometry Interface

When you are working with foreign CAD or ECAD data, such as files in the STEP, GDS, or IGES file formats, or any of the other supported formats, you may think that you need to re-import a new CAD file and start your modeling over from scratch if you want to study a change in size or shape. But, in fact, you can modify the geometry that you've imported with some clever usage of the Deformed ...

Thermostat with a Reactionary Delay

This example shows how to model the behavior of a thermostat where a delay in its reaction has been implemented. A more detailed description of the phenomenon, and the modeling process, can be seen in the blog post "[How to Implement a Delay in Your Thermostat Simulation](https://www.comsol.com/blogs/how-to-implement-a-delay-in-your-thermostat-simulation/)".

Simulating Action Potential with the Hodgkin-Huxley Model

This app allows you to simulate the action potential in a cell's membrane using the Hodgkin-Huxley model. As it is presented in the form of a simulation app, you can change the input parameters for potential, conductance, and membrane capacitance to study their effects on the dynamics of the system. A more detailed description of the phenomenon, and the modeling process, can be seen in the [blog post](https://www.comsol.com/blogs/analyze-the-hodgkin-huxley-model-with-a-computational-app/) ...

Helical Static Mixer

Helical static mixers are often used to mix monomers and initiators that then react during a polymerization process. The purpose of the Helical Static Mixer application is to demonstrate this mixing process as well as the use of parts and parameterized geometries when building apps. The concentration field is included in the analysis in order to compute the extent of mixing between two streams ...

Job Sequences to Save Data After Solving a Model

These examples demonstrate how to use a job sequence to perform a programmatic sequence of operations, including solving; saving the model to file; and generating and exporting plot groups, results, and images. In the blog post associated with these files, "[How to Use Job Sequences to Save Data After Solving Your Model](/blogs/how-to-use-job-sequences-to-save-data-after-solving-your-model/)", ...