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Publisher: Acoustical Society of America
Languages: English
Types: Article
Subjects: TA

Classified by OpenAIRE into

arxiv: Physics::Fluid Dynamics
Identifiers:doi:10.1121/1.3655893
Flow is studied through a channel with an oscillating orifice mimicking the motion of the glottal-gap during phonation. Simulations with prescribed flow and wall-motion are carried out for different orifice geometries, a 2D slit-like and a 3D lens-like one. Although the jet emerges from a symmetric orifice a significant deflection occurs in case of the slit-like geometry, contrary to the 3D lens-like one. The results demonstrate the dependency of jet entrainment and vortex dynamics on the orifice geometry and the interpretation of asymmetric jet deflection with regard to the relevance of the Coanda effect in the process of human phonation.
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    • 1W. C. Reynolds, D. E. Parekh, P. J. D. Juvet, and M. J. D. Lee, “Bifurcating and blooming jets,” Ann.
    • Rev. Fluid Mech. 35, 295-315 (2003).
    • 2X. Zheng, R. Mittal, and S. Bielamowicz, “A computational study of asymmetric glottal jet deflection during phonation,” J. Acoust. Soc. Am. 129(4), 2133-2142 (2011).
    • 3B. D. Erath and M. W. Plesniak, “Impact of wall rotation on supraglottal jet stability in voiced speech,” J. Acoust. Soc. Am. 129(3), EL64-EL70 (2011).
    • 4M. Triep and C. Bru¨cker, “Three-dimensional flow nature of the supraglottal jet,” J. Acoust. Soc. Am.
    • EL378 J. Acoust. Soc. Am. 130 (6), December 2011
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