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. 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.
This model examines the behavior of a positive corona formed between concentric cylindrical conductors exposed to high applied voltages. The predicted current–voltage response closely matches the measurements. Rather than reproducing individual positive glow corona bursts, the setup ... Read More
This app generates random surfaces based on imported CAD models. Surfaces can be created using Gaussian or uniform random fields, analytical expressions, or combinations of random and deterministic fields. The app provides extensive customization options for controlling roughness, ... Read More
An interesting question was raised in the 1950s by the mathematician Ernst Straus that, in an arbitrarily shaped empty room with side walls made of perfect mirrors, will a point light source always illuminate the whole room? This question was answered by the Nobel Prize-winning ... Read More
Galvanostatic Intermittent Titration Technique (GITT) is commonly used to estimate the solid-phase lithium diffusion coefficient in electrode particles. In this example, a half-cell model is built using the Lithium-Ion Battery interface, and imported synthetic voltage datasets at ... Read More
This example exemplifies how you can export the data from your mesh and results to a text file. A more detailed description of the phenomenon and the modeling process can be seen in the blog post "Exporting Meshes and Solutions Using the Application Builder". Read More
This example of a simulation application shows how to add a user-defined license agreement, which you can use to protect applications that you publish and distribute. Read More
This model demonstrates how to solve delay differential equations in the context of modeling a population dynamics problem. To learn more about this model, see our accompanying blog post “Solving Delay Differential Equations to Model…Marmots? ”. Read More
A circularly polarized GHz wave is incident on a layer of cold magnetized plasma. Depending on the operating frequency and plasma state, the incident wave can excite a set of waves with different polarizations. The resulting reflection and transmission characteristics can be of interest ... Read More
In epitaxial growth processes, the uniformity of temperature distribution and the stability of gas flow within the chamber are critical factors determining film quality. This model demonstrate the CFD and thermal analysis of a ring‑lamp‑heated epitaxial reactor chamber, considering the ... Read More
This example model demonstrates shape optimization of a cavity filter using the Transformation feature, so the boundaries remain flat and angles do not change. The optimization considers both insertion loss and out-of-band rejection. The optimized shape is verified using a different mesh ... Read More
