NUMERICAL SIMULATION FOR TSUNAMI-HEIGHT REDUCTION USING A VERY LARGE FLOATING STRUCTURE

Proceedings of the International Conference on Coastal Engineering

Takatsugu Kamba¹  Tatsuya Nakahira²  Taro Kakinuma³  Takahiro Murakami⁴  Keisuke Nakayama⁵ 

[1] Daitetsu Kogyo Co., Ltd.;Echo Co. Ltd.;Kagoshima University;Kansai University;Kobe University

关键词: VLFS;    tsunami;    wave-height reduction;    thin-plate;    floating-body wave;   

DOI  :  10.9753/icce.v35.waves.24

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

The tsunami-height reduction using a very large floating structure, i.e., VLFS, is discussed, with the water waves, interacting with a floating thin-plate, simulated numerically. The final tsunami-height reduction rate increases, as VLFS length, VLFS flexural rigidity, or the wave height of an incident tsunami, is increased. If two VLFSs are utilized, the final tsunami-height reduction rate, also depends on the distance between the VLFSs. In two-dimensional tsunami propagation, another wave propagates to the outside, along the crest line of the main wave, leading to an additional tsunami-height reduction.

【 授权许可】

CC BY