On the reflection of time-domain acoustic spherical waves by a sinusoidal diffraction grating
| Autor: | Guochao Gao, Carole Deumié, Nathalie Favretto-Cristini, Paul Cristini |
|---|---|
| Přispěvatelé: | Institut FRESNEL (FRESNEL), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU), DiMABio (DiMABio), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Mécanique et d'Acoustique [Marseille] (LMA ), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Diffraction
Acoustics and Ultrasonics genetic structures QC221-246 Physics::Optics 010502 geochemistry & geophysics 01 natural sciences Signal Sphericity Speech and Hearing Optics 0103 physical sciences wave scattering Time domain Electrical and Electronic Engineering 010301 acoustics Diffraction grating periodic rough surface 0105 earth and related environmental sciences Wavefront Physics Acoustics in engineering. Acoustical engineering business.industry time domain Emphasis (telecommunications) Acoustics. Sound Computer Science Applications [PHYS.MECA.ACOU]Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph] TA365-367 numerical simulation Reflection (physics) grating equation sense organs business |
| Zdroj: | Acta Acustica Acta Acustica, EDP Sciences, 2021, 5, pp.6. ⟨10.1051/aacus/2020033⟩ Acta Acustica, Vol 5, p 6 (2021) Acta Acustica, 2021, 5, pp.6. ⟨10.1051/aacus/2020033⟩ |
| ISSN: | 2681-4617 |
| Popis: | International audience; This work reports on some results obtained from numerical simulations of time-domain acoustic wave propagation in the presence of a periodically rough interface. Emphasis is put on the structure of the reflected signals in the presence of a sinusoidal grating. More specifically, we investigate the effect of the frequency bandwidth of the emitted signal and the effect of the incident wavefront sphericity on the signals reflected from the rough interface and associated with the different diffraction orders. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|