VALIDATION OF DEBRIS MODEL FOR CONTAINER DRIFTING IN TSUNAMI BACKWASH CONSIDERING BOTTOM FRICTION EFFECT

DOI Web Site 2 Citations 5 References
  • KURAHARA Yoshinosuke
    東亜建設工業(株)技術研究開発センター
  • TAKEDA Masahide
    東亜建設工業(株)技術研究開発センター
  • TAKAGAWA Tomohiro
    (国研)海上・港湾・航空技術研究所 港湾空港技術研究所 津波高潮研究グループ
  • CHIDA Yu
    (国研)海上・港湾・航空技術研究所 港湾空港技術研究所 津波高潮研究グループ

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Other Title
  • 引き波下における漂流コンテナの着底に関する漂流物移動モデルの検証

Abstract

<p> In this study, we validated the debris model included in the tsunami simulator T-STOC by the hydraulic experiments that a container landed after drifting under the tsunami backwash. We measured the friction coefficient on the container model bottom and ground under wet and dry condition, and the drag coefficient of the drifting container model. We investigated the effect of each coefficient on the calculation of the acting force, drifting velocity and position. As a result, it shown that the calculated drifting position using the friction coefficient measured under the wet conditions was consistent with experimental results. Although the measured drag coefficient was slightly larger than the general drag coefficient of rectangular solid, the drifting speed and position were roughly reproduced by numerical calculations using the drag coefficient obtained from the measurements.</p>

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