標題: Bragg reflection of waves by different shapes of artificial bars
作者: Hsu, TW
Chang, HK
Tsai, LH
土木工程學系
Department of Civil Engineering
關鍵字: waves;Bragg reflection;higher-harmonic resonance;artificial bars
公開日期: 2002
摘要: Experiments are performed in a wave flume to demonstrate the Bragg reflection of linear gravity waves by artificial bars. Three different artificial bars with rectangular, triangular and rectified cosinoidal shapes are placed discretely on the seabed for measurement of the Bragg reflection. A series of experimental conditions including the number of bars, the periodic bar spacing, the water depth and various wave conditions are tested. Key parameters influencing the Bragg resonances are investigated. The experimental data are compared with the values from both theoretical and numerical models. Some key parameters have proved to be effective in describing the primary resonances. Predictive equations of the characteristics for the Bragg reflection are proposed in this paper.
URI: http://hdl.handle.net/11536/29174
ISSN: 0890-5487
期刊: CHINA OCEAN ENGINEERING
Volume: 16
Issue: 3
起始頁: 343
結束頁: 358
顯示於類別:期刊論文