Effects of two-dimensional reed oscillation on airflow and sound generation in a single-reed instrument

Yoshinaga, Tsukasa; Baba, Reo; Yokoyama, Hiroshi et al.

Computers and Fluids, 2024, 285, 106452

Number of Access:396（2025-08-15 06:46 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/98593

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Title
Effects of two-dimensional reed oscillation on airflow and sound generation in a single-reed instrument
Creator
NRID
1000050824190 1000050824190
researchmap permalink
t_yoshinaga t_yoshinaga
Scopus Author ID
56429907300 56429907300
ORCID
0000-0002-4655-4186 0000-0002-4655-4186
CreatorName
Yoshinaga, Tsukasa
CreatorName
Baba, Reo
NRID
1000060581428 1000060581428
CreatorName
Yokoyama, Hiroshi
CreatorName
Shoji, Tetsuro
CreatorName
Miki, Akira
NRID
1000030338272 1000030338272
CreatorName
Iida, Akiyoshi
Subject
Compressible flow
Fluid-structure interaction
Reed oscillation
Woodwind instruments
Description
Yoshinaga T., Baba R., Yokoyama H., et al. Effects of two-dimensional reed oscillation on airflow and sound generation in a single-reed instrument. Computers and Fluids 285, 106452 (2024); https://doi.org/10.1016/j.compfluid.2024.106452.
Abstract
While two-dimensional (2D) reed oscillation modes of single-reed woodwind instruments have been reported in previous studies, little is known about their effects on airflow and sound generation. In this study, we conducted aeroacoustic simulations of a clarinet mouthpiece and resonator coupled with one-dimensional (1D) and 2D reed deformation models and investigated the changes in flow and sound generation due to the 2D reed vibration. The 1D and 2D reeds were modeled using 1D beam and thin plate theories, respectively, whereas the three-dimensional airflow was simulated by solving the compressible Navier–Stokes equations. The self-sustained oscillations of the 2D reed model mainly exhibited a flexural mode at the fundamental frequency, which is consistent with previous observations. Complex torsional modes were observed only at higher harmonic frequencies. A comparison between the 1D and 2D reed models demonstrated that the 2D reed opened later at the side face of the mouthpiece than the 1D reed owing to the torsional mode, which changed the time variation of the flow rate into the mouthpiece and the far-field sound in the high-frequency range. These results suggest the importance of the torsional deformation characteristics of reeds on the timbre of single-reed instruments.
Publisher
Elsevier Ltd
Source Title
Computers and Fluids
Volume (Issue)
285
Page
106452
Date of Issued
2024-12-15
Language
English
Handle URL
https://hdl.handle.net/11094/98593
PISSN
00457930
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1016/j.compfluid.2024.106452
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution 4.0 International License.
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Category
学術雑誌論文 Journal Article