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- W4360892452 abstract "We report on an experimental study of a device composed by an array of submerged, reversed and periodic cylindrical pendula (resonators), whose objective is the attenuation of surface gravity waves. The idea is inspired by the concept of metamaterials, i.e. engineered structures designed to interact with waves and manipulate their propagation properties. The study is performed in a wave flume where single frequency waves are excited in a wide range of frequencies. We explore various configurations of the device, measuring the transmitted, reflected and dissipated energy of the waves. If the incoming wave frequencies are sufficiently close to the natural frequency of the pendula, we find a considerable wave attenuation effect, driven by viscous dissipative mechanisms. This behaviour is enhanced by the number of resonators in the array. Moreover, the device is also capable of reflecting the energy of selected frequencies of the incoming waves. These frequencies can be predicted by assuming the interactions involving at least three wave modes, including higher harmonics, and are therefore associated with the distance between the resonators. The presented results show promise for the development of a environmentally sustainable device for mitigating waves in coastal zones." @default.
- W4360892452 created "2023-03-25" @default.
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- W4360892452 date "2023-03-22" @default.
- W4360892452 modified "2023-09-27" @default.
- W4360892452 title "Attenuating surface gravity waves by an array of submerged resonators: an experimental study" @default.
- W4360892452 doi "https://doi.org/10.48550/arxiv.2303.12646" @default.
- W4360892452 hasPublicationYear "2023" @default.
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