Organ Pipe Design
Application ID: 14729
This app demonstrates the following:
- Using a Java® utility class for combining several waveforms and for playing sound
- Using tables for presenting results
The app allows you to study the design of an organ pipe and then play the sound and pitch of the changed design. The pipe sound includes the effects of different harmonics with different amplitudes.
The organ pipe is modeled using the Pipe Acoustics, Frequency Domain interface. The app allows you to analyze how the first fundamental resonance frequency varies with the pipe radius and wall thickness, as well as with the ambient pressure and temperature.
In the app you can find the full frequency response, including the fundamental frequency and the harmonics. With a method written in Java® code, the app detects the location and amplitude of all harmonics in the response, thus extending the analysis beyond the built-in functionality of the COMSOL Multiphysics user interface.
This application 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:
- COMSOL Multiphysics® and
- either the Acoustics Module, or Pipe Flow Module
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 Specification Chart 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.