Collision Analysis of Container Drifted by Runup Tsunami Using Drift Collision Coupled Model
Gyeong-Seon Yeom*, Tomoaki Nakamura**, and Norimi Mizutani**
*Tsunami Research Center, Port and Airport Research Institute Nagase, Yokosuka, Kanagawa 239-0826, Japan
** Department of Civil Engineering, Nagoya University Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
This study proposes analyzing tsunami generation and propagation of tsunamis, wave runup onto land, object drift, collision with other structures, deformation prediction of colliding and collided-with, and collision force estimation. To reduce calculation load in using the LS-DYNA collision model, we use a drift model using the immersed boundary (IB) method from wave generation to just before collision, and the collision model is used during the collision phase, in which numerical data calculated using the drift model are used as an initial condition of the collision model. Validity of the drift model for wave level, wave force, and drift behavior of a container were verified through comparison with experimental data measured in laboratory experiments. Collision model predictability was also confirmed in terms of drift collision force. Fluid-structure interaction (FSI) between the container and the runup wave is reproduced in numerical drift collision analysis. Through this analysis of a full-scale container based on the international standard with a concrete column, we confirmed the applicability of the collision analysis using the drift simulation as an initial condition for an actual field.
-  R. Asakura, K. Iwase, T. Ikeya, M. Takao, K. Kaneto, N. Fujii, and M. Omori, “An experimental study on wave force acting on on-shore structures due to overflowing tsunamis,” Proc. of Coastal Engineering, JSCE, Vol.47, pp. 911-915, 2000 (in Japanese).
-  M. Ohmori, N. Fujii, O. Kyouya, M. Takao, T. Kaneto, and T. Ikeya, “Numerical simulation of water level, velocity and wave force overflowed on upright seawall by tsunamis,” Proc. of Coastal Engineering, JSCE, Vol.47, pp. 376-380, 2000 (in Japanese).
-  H. Matsutomi, “A practical formula for estimating impulsive force due to driftwoods and variation features of the impulsive force,” Journal of Hydraulic, Coastal and Environmental Engineering, JSCE, No.621, II-47, pp. 111-127, 1999 (in Japanese).
-  M. Ikeno and H. Tanaka, “Experimental study on impulse force of drift body and tsunami running up to land,” Proc. of Coastal Engineering, JSCE, Vol.50, pp. 721-725, 2003 (in Japanese).
-  S. Ushijima, O. Makino, and N. Toshikawa, “3D numerical prediction for transportation and entrapment of driftwood with T-type solid model,” Journal of Hydroscience and Hydraulic Engineering, Vol.27, No.1, pp. 11-21, 2009.
-  N. Mizutani, Y. Takagi, K. Shiraishi, S. Miyajima, and T. Tomita, “Study on wave force on a container on apron due to tsunamis and collision force of drifted container,” Annual Journal of Coastal Engineering, JSCE, Vol.52, pp. 741-745, 2005 (in Japanese).
-  G.-S. Yeom, T. Nakamura, A. Usami, and N. Mizutani, “Study on estimation of collision force of a drifted container using fluid-structure interaction analysis,” Annual Journal of Coastal Engineering, JSCE, Vol.55, pp. 281-285, 2008 (in Japanese).
-  K. Kumagai, K. Oda, and N. Fujii, “The field experiment for containers floating on sea surface and numerical simulation of container drift,” Annual Journal of Coastal Engineering, JSCE, Vol.55, pp. 271-275, 2008 (in Japanese).
-  N. Yoneyama, H. Nagashima, and K. Toda, “Development of a numerical analysis method for the drift behavior in tsunami,” Annual Journal of Coastal Engineering, JSCE, Vol.55, pp. 886-890, 2008 (in Japanese).
-  Y. Yuki, S. Takeuchi, and T. Kajishima, “Efficient immersed boundary method for strong interaction problem of arbitrary shape object with the self-induced flow,” Journal of Fluid Science and Technology, JSME, Vol.2, No.1, pp. 1-11, 2007.
-  T. Nakamura, Y. Kuramitsu, and N. Mizutani, “Tsunami scour around a square structure,” Coastal Engineering Journal, JSCE, Vol.50, No.2, pp. 209-246, 2008.
-  T. Kunugi, “MARS for multiphase calculation,” CFD Journal, Vol.9, No.1, IX-563, 2000.
-  A. A. Amsden and F. H. Harlow, “A simplified MAC technique for incompressible fluid flow calculation,” Journal of Computational Physics, Vol.6, pp. 322-325, 1970.
-  F. Xiao, T. Yabe, T. Ito, and M. Tajima, “An algorithm for simulating solid objects suspended in stratified flow,” Computer Physics Communications, Elsevier, Vol.102, pp. 147-160, 1997.
-  LSTC, “LS-DYNA theory manual,” Livermore Soft Technology Corporation, USA, 2006.
-  M. Souli, A. Ouahsine, and L. Lewin, “ALE formulation for fluid-structure interaction problems,” Computer Methods in Applied Mechanics and Engineering, Vol.190, pp. 659-675, 2000.
-  Japanese Industrial Standards Committee, “Freight containers for international trade — external dimensions and ratings,” JIS Z1614, 4p, 1994.
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