Abstract
Helmholtz resonators play a key role as silencers in many technical applications. The aim of this work is to study the mechanism that governs the emission and reduction of noise. For the first time, we closely monitor the interaction between the acoustic field of a Helmholtz resonator’s geometry and a fully turbulent shearing flow by a Direct Numerical Simulation. The properties of a fully turbulent flat plate flow with and without a wall-mounted cavity are contrasted and compared to the Chase model.
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Acknowledgements
The provision of computational resources (ACID11700) by the Federal High-Performance Computing Center Stuttgart (HLRS) are gratefully acknowledged. This work is possible through the Elsa-Neumann-Stipendium des Landes Berlin (NaFöG).
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Stein, L., Reiss, J., Sesterhenn, J. (2018). Numerical Simulation of a Resonant Cavity: Acoustical Response Under Grazing Turbulent Flow. In: Dillmann, A., et al. New Results in Numerical and Experimental Fluid Mechanics XI. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 136. Springer, Cham. https://doi.org/10.1007/978-3-319-64519-3_60
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DOI: https://doi.org/10.1007/978-3-319-64519-3_60
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