Experimental Verifications of a Newly Developed Resonator for Sheltering Very Long Waves

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  • 超長周期波の制御のための新型共振装置に関する実験的検証
  • チョウチョウ シュウキハ ノ セイギョ ノ タメ ノ シンガタ キョウシン ソウチ ニ カンスル ジッケンテキ ケンショウ

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Abstract

In order to shelter harbors from very long waves (say wave period being greater than one minute), a new type of resonator was developed. Physical experiments were carried out to verify the effectiveness of the newly developed resonator. Extensive investigation was performed based on both numerical computations and experiments to examine effectiveness of the newly developed resonator as compared to the previous rectangular resonator and also the jetty type breakwater. Due to existence of higher harmonics in very long period waves, the harmonic analysis of incident and transmitted waves was carried out to know the performance of the new resonator accurately. It was verified both experimentally and numerically that the newly developed resonator was effective for sheltering very long waves.

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