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Communication Dans Un Congrès Année : 2022

Thermoviscous acoustic propagation in thin rough tubes

Résumé

Thermoviscous acoustic propagation in a tube with corrugated isothermal rigid walls is considered. At long wavelengths, it amounts to a 1D transmission line equation, in which the coefficients depend on the solution to a 2D diffusion problem. These coefficients are shown to display predictable behaviors at low, high, and intermediate frequencies. These results are demonstrated on a numerical example.
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Dates et versions

hal-03780126 , version 1 (19-09-2022)

Identifiants

  • HAL Id : hal-03780126 , version 1

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Henri Boutin, Juliette Chabassier, Thomas Hélie, Alexis Thibault. Thermoviscous acoustic propagation in thin rough tubes. WAVES 2022 - 15th International Conference on Mathematical and Numerical Aspects of Wave Propagation, Jul 2022, Palaiseau, France. ⟨hal-03780126⟩
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