Study on Estimation of Collision Force of a Drifted Container Using Fluid-Structure Interaction Analysis

Yeom, Gyeong-Seon; Nakamura, Tomoaki; Usami, Atsuhiro; Mizutani, Norimi

doi:10.2208/proce1989.55.281

Cited by 5 publications

(3 citation statements)

References 3 publications

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“…The effectiveness of the model was verified by measured data. Yeom et al (2008) proposed a calculation method to estimate the collision time and collision force of containers under the effect of tsunami. The experimental results showed that the simulation performance of the drift container on rising wave is in good agreement with the laboratory experimental results.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study of Energy Dissipation of Sea Grass in a Dam Break Flume

2022

Global NEST Journal

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<p>An experimental study was carried out to investigate the energy dissipation characteristics of sea grass in a dam break flume. Dam break flows were generated in a flume. A steel ball was subjected to the dam break flow, and then climbed on a slope. Artificial sea grass was used as the energy dissipation plant. In the study, the characteristics (such as wave height, wave velocity, Froude number) of the dam break flow were investigated, the ball subjected to the dam break flow was observed, some impact factors of ball climbing height were explored. Results show that, the ball climbing height increases with increasing reservoir water level and decreasing ball diameter. The relative ball climbing height decreases with increasing relative distance and increasing relative grass height. The relative ball climbing height shows logarithmic correlation with relative reservoir water level. The energy dissipation coefficient of the sea grass changed with reservoir water level, with the average value of 0.34 in this study.</p>

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Section: Introductionmentioning

confidence: 99%

An Experimental Study of Energy Dissipation of Sea Grass in a Dam Break Flume

2022

Global NEST Journal

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“…Several researchers have conducted hydraulic experiments to investigate detailed measurements of the flow field around a single piece of shipping container and experimentally determined how debris impact is affected by the surrounding fluid [5,6]. Yeom et al [7][8][9] conducted hydraulic experiments and numerical simulations to investigate the drift behavior of a single piece of debris and proposed a calculation scheme capable of investigating the collision forces and collision times resulting from shipping container drift caused by tsunamis. Collision deformation prediction and collision force estimation were also performed to confirm the applicability of collision analysis to reduce such damage.…”

Section: Introductionmentioning

confidence: 99%

Influence of Tsunami-Driven Shipping Containers’ Layout on Their Motion

Hou

Nakamura

Cho

et al. 2022

JMSE

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This study investigated the interaction between containers under extreme hydrodynamic conditions modeled on tsunamis to assess whether the number and layout of containers affect their motion and to guide future studies on numerical simulations describing tsunami-debris motion. The three-dimensional Fluid–Structure–Sediment–Seabed Interaction Model (FS3M), which can compute tsunami–container interaction, was used as a numerical test model, and numerical results for the specific target of the simulation were compared with experimental data to check the validity and computational accuracy of the FS3M. The study showed that the number of rows (Nx), columns (Ny), and stacks (Nz) in the initial arrangement of containers constitute the main factor affecting the area where the containers spread and their drift motion velocity. An increase in Nx and Nz can effectively reduce the container drift velocity. Conversely, as Ny increases, the drift motion velocity of the center of gravity of the entire group increases. The results of this study can facilitate the development of more realistic building structure scenarios in future research that consider the proposed characteristic damage estimation and comprehensive assessment methods laid out herein.

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“…In the past few years, researches have been undertaken to investigate behaviors of drifted objects due to tsunamis (e.g., Matsutomi 2009;Ikeno et al 2006;Inagaki et al 2008). Yeom et al (2007Yeom et al ( , 2008 investigated behaviors of drifted containers and proposed a formula to estimate the collision force by a drifted container. They pointed out that the added mass of a water column pushing the container plays an important role.…”

Section: Introductionmentioning

confidence: 99%

Reflection and Run-Up of Tsunami on Quay Wall and Behavior of Drifted Vessels Due to Tsunami

Mizutani

Nakamura

2011

Int. Conf. Coastal. Eng.

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Behaviors of a drifted vessel due to a tsunami and the reflection of the tsunami from a quay wall are investigated in this paper based on experiments and numerical analysis. It is found that the height of the quay wall has a great influence on the reflection, and hence the tsunami run-up. It is also revealed that the vessel can be run up on the apron when the water depth at the quay wall is larger than the draft of the vessel.

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Study on Estimation of Collision Force of a Drifted Container Using Fluid-Structure Interaction Analysis

Cited by 5 publications

References 3 publications

An Experimental Study of Energy Dissipation of Sea Grass in a Dam Break Flume

An Experimental Study of Energy Dissipation of Sea Grass in a Dam Break Flume

Influence of Tsunami-Driven Shipping Containers’ Layout on Their Motion

Reflection and Run-Up of Tsunami on Quay Wall and Behavior of Drifted Vessels Due to Tsunami

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