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.
Acoustic Mean Free Path in a Room
This model uses the *Ray Acoustics* interface to extract statistical information about a room. Two examples of rooms are analyzed: 1. The staircase from the [One-Family House Acoustics tutorial model](/model/one-family-house-acoustics-20169) 2. A long corridor The models compute the ... Read More
Vibrating Plate in a 2D Viscous Parallel Plate Flow
This is a small 2D demonstration model that couples the *Linearized Navier-Stokes, Frequency Domain*, *Solid Mechanics*, and *Turbulent Flow* (k-epsilon) physics interfaces to model the vibrations of a plate located in a 2D viscous parallel plate flow. This type of model is used to model ... Read More
Generalized Kelvin Viscoelastic Material
The behavior of viscoelastic materials can be represented by conceptual models composed of elastic and viscous elements connected in series or in parallel. The rheology of the generalized Kelvin model (also called generalized Kelvin-Voigt model) consists of an elastic spring to ... Read More
Wax Guard Acoustics: Transfer Matrix Computation
In this tutorial, the acoustic properties of a wax guard are analyzed. A wax guard is a small perforated mesh used to protect the receiver (the miniature loudspeaker in a hearing aid) used for receiver-in-the-ear (RITE) or receiver-in-canal (RIC) hearing aids. Because of the very small ... Read More
Shape Optimization of an Acoustic Demultiplexer
This model shows how shape optimization can be used to design an acoustic demultiplexer. A demultiplexer is a data distributing device, in this case it will distribute acoustic energy. The geometry consists of a circular domain with one input port and two output ports. The domain has the ... Read More
Diesel Particulate Filter Analysis Using an Acoustic Transfer Matrix
Diesel particulate filters (DPFs) are designed to remove and filter soot (diesel particles) from the exhaust of diesel engine vehicles. The filters in such systems are typically structured with long, air-filled channels surrounded by a porous medium that retains the soot. Although the ... Read More