Talks and Poster Presentations (with Proceedings-Entry):
P. Sidlof, S. Zörner, A. Hüppe:
"Numerical simulation of flow-induced sound in human voice production";
Talk: Parallel Computational Fluid Dynamics,
Changsha, Hunan, China;
2013-05-20
- 2013-05-24; in: "Procedia Engineering",
Procedia Engineering / Elsevier Ltd.,
61 / 0
(2013),
ISSN: 1877-7058;
333
- 340.
English abstract:
Abstract The aeroacoustic mechanisms in human voice production are complex coupled processes, which are not fully understood until now. The paper presents a hybrid numerical approach to the solution of the acoustic field in human vocal tract, when the fluid flow is first solved by a dedicated \{CFD\} solver on a fine computational mesh covering the larynx. Subsequently, the acoustic sources and propagation of the sound waves are calculated by Lighthill's analogy or acoustic perturbation equations on a coarse mesh covering the whole vocal tract including radiation region. The \{CFD\} simulation was run in parallel on a \{SGI\} Altix \{UV\} shared-memory supercomputer; strong and weak parallel performance was tested for up to 50 computational cores. The spectra of the radiated sound for two vowels/i/and/u/evaluated from the acoustic simulation show good agreement with the formant frequencies known from human subjects.
Keywords:
aeroacoustics
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1016/j.proeng.2013.08.024
Created from the Publication Database of the Vienna University of Technology.