To clarify fluid–acoustic interactions in an actual recorder with opened and closed tone holes, flow and acoustic fields were directly numerically simulated on the basis of the compressible Navier–Stokes equations. To validate the simulation accuracy, the flow field around the windway and sound pressure above the window were measured. The predicted acoustic fields clarify changes of the positions of pressure nodes and anti-nodes in accordance with the state of the tone holes and the Mach number of the jet velocity. The fundamental mechanism of the self-sustained oscillations in a three-dimensional actual recorder is visualized by the predicted acoustic and flow fields. This result is also consistent with the relationship between the jet behaviors and pressure fluctuations based on the jet-drive model. Moreover, the effects of the fine vortices in the jet, which appear at the high Mach number of jet velocity of 0.099, on the sound are discussed. The time difference between the generation of the disturbances and the most intense deflection of the jet is identified and compared with the time delay of acoustic reflection around the window.
Skip Nav Destination
,
,
,
Article navigation
August 2015
August 17 2015
Direct numerical simulation of fluid–acoustic interactions in a recorder with tone holes Available to Purchase
Hiroshi Yokoyama;
Hiroshi Yokoyama
a)
1Department of Mechanical Engineering,
Toyohashi University of Technology
, Aichi 441-8580, Japan
Search for other works by this author on:
Akira Miki;
Akira Miki
2Research & Development Division,
Yamaha Corporation
, Shizuoka 438-0192, Japan
Search for other works by this author on:
Hirofumi Onitsuka;
Hirofumi Onitsuka
2Research & Development Division,
Yamaha Corporation
, Shizuoka 438-0192, Japan
Search for other works by this author on:
Akiyoshi Iida
Akiyoshi Iida
1Department of Mechanical Engineering,
Toyohashi University of Technology
, Aichi 441-8580, Japan
Search for other works by this author on:
Hiroshi Yokoyama
1,a)
Akira Miki
2
Hirofumi Onitsuka
2
Akiyoshi Iida
1
1Department of Mechanical Engineering,
Toyohashi University of Technology
, Aichi 441-8580, Japan
2Research & Development Division,
Yamaha Corporation
, Shizuoka 438-0192, Japan
a)
Electronic mail: [email protected]
J. Acoust. Soc. Am. 138, 858–873 (2015)
Article history
Received:
February 13 2015
Accepted:
July 02 2015
Citation
Hiroshi Yokoyama, Akira Miki, Hirofumi Onitsuka, Akiyoshi Iida; Direct numerical simulation of fluid–acoustic interactions in a recorder with tone holes. J. Acoust. Soc. Am. 1 August 2015; 138 (2): 858–873. https://doi.org/10.1121/1.4926902
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
Focality of sound source placement by higher (ninth) order ambisonics and perceptual effects of spectral reproduction errors
Nima Zargarnezhad, Bruno Mesquita, et al.
A survey of sound source localization with deep learning methods
Pierre-Amaury Grumiaux, Srđan Kitić, et al.
Variation in global and intonational pitch settings among black and white speakers of Southern American English
Aini Li, Ruaridh Purse, et al.
Related Content
Direct aeroacoustic simulation of acoustic radiation in recorders with different windway geometries
Proc. Mtgs. Acoust. (December 2018)
Analysis of jet oscillations with acoustic radiation in the recorder by direct aeroacoustic simulations
J. Acoust. Soc. Am. (August 2019)
Direct aeroacoustic simulation of acoustic radiation in recorders with different windway geometries
J. Acoust. Soc. Am. (September 2018)
Measurement of vocal-tract influence during saxophone performance
J. Acoust. Soc. Am. (April 2008)
Measurements and simulations of sung multiphonics on a trombone played by an artificial mouth
J. Acoust. Soc. Am. (October 2021)