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Article Dans Une Revue Journal of Fluid Mechanics Année : 2018

Backscattering reduction for resonating obstacle in water-wave channel

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Résumé

We consider the propagation of water waves in a waveguide with a surface-piercing circular cylinder. A plane wave interacting with the cylinder leads to a Fano resonance resulting in strong scattering with a large reflection coefficient. Using a smoothly varying bathymetry whose shape is optimized, we show both numerically and experimentally that broadband and robust backscattering reduction can be obtained below the first cutoff frequency.
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Dates et versions

hal-02991333 , version 1 (05-11-2020)

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Tomasz Bobinski, Agnès Maurel, Philippe Petitjeans, Vincent Pagneux. Backscattering reduction for resonating obstacle in water-wave channel. Journal of Fluid Mechanics, 2018, 845, ⟨10.1017/jfm.2018.302⟩. ⟨hal-02991333⟩
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