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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50684

Title: An application of Miles' theory to Bragg scattering of water waves by doubly composite artificial bars
Authors: Swun-Kwang Wang
Tai-Wen Hsu
Li-Hung Tsai
Sheng-Hung Chen
Contributors: 國立臺灣海洋大學:河海工程學系
Keywords: Miles' theory
Bragg resonance
Artificial bars
Boundary integral equation
Date: 2005-08
Issue Date: 2018-10-22T01:33:43Z
Publisher: Ocean Engineering
Abstract: Abstract: In the present paper, Miles' (1981) theory is implemented to derive formulae for describing the Bragg scattering of water waves for doubly composite artificial bars with different shapes, spacings, relative bar heights, relative bar footprint and the number of bars. The theory has clear advantage in estimating Bragg reflection coefficient for practical applications concerning coastal problems. Experiments of Bragg reflections over doubly composite rectangular artificial bars have also been performed in a wave flume. Key parameters that may lead to the optimal selection of a doubly composite artificial bar are studied. Theoretical solutions are seen to compare fairly well with the numerical computations and the laboratory experiments. Our simulated results reveal that the Bragg resonance for doubly composite artificial bars effectively increases the bandwidth of the reflection coefficient.
Relation: 33(3-4) pp.331-349
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50684
Appears in Collections:[Department of Harbor and River Engineering] Periodical Articles

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