Acoustic Mean Free Path in a Room
Application ID: 72491
This model uses the Ray Acoustics interface to extract statistical information about a room.
Two examples of rooms are analyzed:
The staircase from the One-Family House Acoustics tutorial model
A long corridor
The models compute the mean free path as well as the reflection frequency in the room. The temporal evolution of both parameters is also computed.
The mean free path is an important physical parameter when using the Acoustic Diffusion Equation physics interface. The model is set up for pure specular reflections, diffuse scattering, and mixed specular and diffuse conditions. The computed values are compared to the analytical value, 4*V/S, valid for ideal diffuse surfaces.
In the staircase example, the mean free path is also computed in a configuration where a window is open in the staircase.
This model example illustrates applications of this type that would nominally be built using the following products:
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Grille des Spécifications and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.