Investigation of multiply composite artificial bars for bragg scattering of water waves

Li Hung Tsai, Yu Shu Kuo, Yuan Jyh Lan, Tai Wen Hsu, Wen Jung Chen

研究成果: Article同行評審

26 引文 斯高帕斯(Scopus)

摘要

The Bragg scattering of water waves by multiply composite artificial bars was investigated both theoretically and experimentally. Miles' theory is first employed to derive general formulae to calculate Bragg reflection coefficients for multiply composite artificial bars with different shapes, spacings, bar heights, bar footprint, and the number of bars. The theory provides explicit expressions in estimating Bragg reflections over multiply composite bars in practical engineering applications. The undulating oscillation components expanded with respect to the bottom slope and curvature components in the numerical model can increase the accuracy for the simulation of Bragg scattering. Experiments of Bragg reflection over multiply rectangular artificial bars were also conducted in a wave flume. Analytical solutions are in good agreement with numerical simulations of evolution equation of mild-slope equation (EEMSE) and laboratory experiments. Influence parameters that may lead to the optimal combination of a multiple artificial bar to increase the bandwidth of Bragg resonance were studied.

原文English
頁(從 - 到)521-548
頁數28
期刊Coastal Engineering Journal
53
發行號4
DOIs
出版狀態Published - 2011 12月

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 建模與模擬
  • 海洋工程

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