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Updated: Nov 23, 2025
09:58
Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp
Published on: February 3, 2014
8.7K
Navier-Stokes-based model of the clarinet.
1Department of Physics, Auburn University, Auburn, Alabama 36849, USA.
The Journal of the Acoustical Society of America
|December 31, 2020
Summary
This study models a single reed instrument, like a clarinet, using fluid dynamics and beam theory. It investigates how reed vibration frequency and sound depend on the instrument
Area of Science:
- Acoustics
- Fluid Dynamics
- Musical Instrument Physics
Background:
- Single reed instruments produce sound through the vibration of a reed.
- Accurate modeling of these instruments is complex due to the interplay of fluid dynamics and mechanical vibrations.
- Previous models often simplify reed behavior or fluid flow.
Purpose of the Study:
- To develop and analyze a computational model of a single reed instrument.
- To investigate the relationship between reed oscillation frequency and the instrument's bore resonance.
- To study the influence of player lip contact on instrument acoustics.
Main Methods:
- Modeling the reed as an Euler-Bernoulli beam.
- Calculating airflow using the Navier-Stokes equations.
- Simulating a scaled-down clarinet for computational feasibility.
Main Results:
- Identified conditions where bore resonance dictates reed oscillation frequency and sound.
- Quantified air density and pressure within the mouthpiece and bore.
- Analyzed the impact of reed-lip contact on acoustic output.
Conclusions:
- The study provides insights into the acoustic behavior of single reed instruments.
- Numerical modeling can effectively explore complex interactions within musical instruments.
- Findings contribute to a deeper understanding of sound production in woodwind instruments.
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