TY - CONF
T1 - Low mach number flow through a constricted, stylized vocal tract
AU - Slimon, S.
AU - Davis, D.
AU - Levinson, S.
AU - Krane, M.
AU - Richard, G.
AU - Sinder, D.
AU - Duncan, H.
AU - Lin, Q.
AU - Flanagan, J.
N1 - Funding Information:
Fig. 2 Random natural frequency (rad/s) of sandwich plates for a first, b second, and c third natural frequencies with skew angle, (ϕ) = 0°, 15°, 30°, 45°, and 60° Acknowledgements The first and second authors would like to acknowledge the financial support received from MHRD GOI during this research work.
Publisher Copyright:
© 1996, American Institute of Aeronautics and Astronautics, Inc.
PY - 1996
Y1 - 1996
N2 - Ongoing research intended to contribute to the development of compact descriptions of the information in the human speech signal is described. This paper presents an early progress report on work which focuses on one aspect of this research - characterization of voiceless-fricative generation. A stylized dental fricative topology, with features representative of the vocal tract geometry for the phoneme /s/ (as in sun), has been developed. The flow, acoustic source terms, and acoustic spectra for this topology are being evaluated using experimental, traditional computational fluid dynamic, and computational aeroacoustic approaches. For each approach, mean flow quantities, turbulence intensities and acoustic spectra are being measured or computed. The experimental approach has been designed so that a high quality data set will be available for detailed comparison with both computational approaches. The use of two computational methods will allow assessment of the limitations/benefits of each approach through computational comparisons and comparison with the experimental data.
AB - Ongoing research intended to contribute to the development of compact descriptions of the information in the human speech signal is described. This paper presents an early progress report on work which focuses on one aspect of this research - characterization of voiceless-fricative generation. A stylized dental fricative topology, with features representative of the vocal tract geometry for the phoneme /s/ (as in sun), has been developed. The flow, acoustic source terms, and acoustic spectra for this topology are being evaluated using experimental, traditional computational fluid dynamic, and computational aeroacoustic approaches. For each approach, mean flow quantities, turbulence intensities and acoustic spectra are being measured or computed. The experimental approach has been designed so that a high quality data set will be available for detailed comparison with both computational approaches. The use of two computational methods will allow assessment of the limitations/benefits of each approach through computational comparisons and comparison with the experimental data.
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U2 - 10.2514/6.1996-1734
DO - 10.2514/6.1996-1734
M3 - Paper
AN - SCOPUS:84977151404
T2 - 2nd AIAA/CEAS Aeroacoustics Conference, 1996
Y2 - 6 May 1996 through 8 May 1996
ER -