Effects of orientation and shape of holes on the band gaps in water waves over periodically drilled bottoms  

作　　者：钟兰花 吴福根 钟会林 

机构地区：[1]Department of Physics,Zhanjiang Normal College [2]Department of Experiment Education,Guangdong University of Technology [3]The Abdus Salam International Center for Theoretical Physics

出　　处：《Chinese Physics B》2010年第2期19-23,共5页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 10674032)

摘　　要：The complete band gaps （CBGs） of shallow water waves propagating over bottoms with periodically drilled holes are investigated numerically by the plane wave expansion method. Four different patterns are considered, containing triangular, square, hexagonal and circular cross-sectioned holes arranged into triangular lattices. Results show that the width of CBGs can be changed by adjusting the orientation of noncircular holes and the effect of hole shape on the width of the maximal CBGs is discussed.The complete band gaps （CBGs） of shallow water waves propagating over bottoms with periodically drilled holes are investigated numerically by the plane wave expansion method. Four different patterns are considered, containing triangular, square, hexagonal and circular cross-sectioned holes arranged into triangular lattices. Results show that the width of CBGs can be changed by adjusting the orientation of noncircular holes and the effect of hole shape on the width of the maximal CBGs is discussed.

关 键 词：water surface wave band gap plane wave expansion method 

分 类 号：O469[理学—凝聚态物理]