Article
SynthVOICE - An aero-acoustic benchmark case (vor Ort)
Authors
* Presenting author
Day / Time: 22.03.2022, 17:00-17:20
Room: 9-0208
Typ: Vortrag (strukturierte Sitzung)
Session: Benchmarks in der Strömungsakustik 1
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Abstract:
The sound of the human voice is generated by the fluid-structure-acoustic interaction between the laryngeal airflow and the two vocal folds (VFs). To analyze the basic aero-acoustic sound generation, experimental synthetic larynx models were developed to provide reliable and reproducible conditions to accurately investigate the phonatory process.SynthVOICE is an internationally well-respected experimental larynx model that includes two VFs made of silicone showing periodical oscillations similar in amplitude and frequency to those found in male phonation. The acoustic signal is dominated by the harmonic tones of the VF oscillations and also includes broadband sound originating from the vortical flow structures inside the flow region. A large amount of experimental data is available upon request, including the aerodynamic pressure at multiple positions along the flow region, the acoustic pressure, the time-resolved 2D flow field measured by PIV and high-speed recordings of the vocal fold oscillations. Furthermore, the CAD data of SynthVOICE and the exact positions of the measuring hardware ensure the reproducibility of the model.The dataset provides the opportunity to validate simulation data obtained by numerical solvers as shown for the hybrid aero-acoustic simulation model SimVOICE which is a combination of a commercial CFD solver with the CAA solver openCFS.