City Research Online

Starting jet flows in a three-dimensional channel with larynx-shaped constriction

Schwarze, R., Mattheus, W., Klostermann, J. & Brücker, C. (2011). Starting jet flows in a three-dimensional channel with larynx-shaped constriction. Computers and Fluids, 48(1), pp. 68-83. doi: 10.1016/j.compfluid.2011.03.016


A numerical model for the three-dimensional starting jet flow in a channel with a static larynx-shaped constriction is presented. Detailed resolution of this kind of jet flow is necessary in order to understand the complex coupling between flow and acoustics in the process of human phonation. The numerical model is based on the equation of continuity and the Navier-Stokes equations. The investigations are done with the open source CFD package OpenFOAM. Numerical simulations are performed for a square-sectioned channel geometry, which is constricted with a fixed shape conforming to the fully opened human glottis. Time-dependent inflow boundary conditions are applied in order to model transient glottal flow rates. The setup of the numerical simulations corresponds to the configuration of a model experiment in order to allow detailed validation. The numerical results are in good agreement with the experimental data, when the near-wall region in the glottal gap is adequately resolved by the numerical grid. The results illustrate the complex interactions between the jet flow and the surrounding vortices. © 2011 Elsevier Ltd.

Publication Type: Article
Additional Information: © 2011 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Publisher Keywords: Glottal airflow; Elliptic jet; Instability; Jet breakdown; Numerical simulation; Larynx-shaped channel; Starting jet flow; Numerical model; Validation
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments: School of Science & Technology
SWORD Depositor:
[thumbnail of 2011-CompFluids_Stimme-Proof_CRO.pdf]
Text - Accepted Version
Available under License : See the attached licence file.

Download (3MB) | Preview
[thumbnail of Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence]
Text (Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence) - Other
Download (201kB) | Preview


Add to AnyAdd to TwitterAdd to FacebookAdd to LinkedinAdd to PinterestAdd to Email


Downloads per month over past year

View more statistics

Actions (login required)

Admin Login Admin Login