NUMERICAL SIMULATION OF SECONDARY UNDULATION OCCURRED IN KOMINATO FISHING PORT OF AMAMI OSHIMA ISLAND DURING THE SUMMER SEASON
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- TANIGAWA Masaaki
- エム・エムブリッジ（株）建設部
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- YAMASHIRO Toru
- 鹿児島大学 理工学研究科（工学系）海洋土木工学専攻
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- KAMIUTO Mizuki
- 鹿児島大学大学院理工学研究科海洋土木工学専攻
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- KAKO Shin'ichiro
- 鹿児島大学 理工学研究科（工学系）海洋土木工学専攻
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- HAMAZOE Koya
- 鹿児島大学大学院理工学研究科海洋土木工学専攻
Bibliographic Information
- Other Title
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- 奄美大島小湊漁港における夏季に発生する副振動の数値計算
- アマミ オオシマ コミナト ギョコウ ニ オケル カキ ニ ハッセイ スル フクシンドウ ノ スウチ ケイサン
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Abstract
Secondary undulation during the summer season is caused by typyoons. Therefore, in harbors and the like, sea level rises dut to overlapping secondary undulation on storm surges and risk of causing disasters such as flooding becomes high. Also, as this secondary undulation may become the maximum deviation after storm surge, it is important to know its characteristics. In this study, we perfomed numerical simulation at the Kominato fishing port of Amami Oshima Island where typoon frequently invasion, and attempted to reproduce secondary undulation that caused by typhoon passage June 18 to 20, 2012. As a result, secondary unduration that occurred after June 19, although qualitative, also appeared in the calculation results. From this result, we clarified the mode characteristics of the period of 6 minutes and the propagation characteristics of the ocean long wave, which is the cause of the secondary unduration.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 74 (2), I_533-I_538, 2018
Japan Society of Civil Engineers