Parametric Study on Scouring around Suction Bucket Foundation

Park, Sunho; Song, Seongjin; Wang, Haiqing; Joung, Tae-Hwan; Shin, Yunsup

doi:10.26748/ksoe.2017.08.31.4.281

Cited by 5 publications

(1 citation statement)

References 6 publications

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“…For a deeper understanding of flow patterns and force mitigations in an idealized coastal area protected by varying structural configurations, this study performed computational simulations based on the olaFlow model, an enhanced version of IHFOAM model (Higuera et al, 2015) that was written in the platform Open-Source Fields Operation and Manipulation (OpenFOAM). OlaFlow uses the finite volume method (FVM) for spatial discretization and solves Reynolds averaged Navier-Stokes (RANS) equations for incompressible flows by using a PIMPLE algorithm (a mixture of the pressure implicit with splitting of operators (PISO) and semi-implicit method for pressure linked equations (SIMPLE)) (Park et al, 2017). The volume of fluid (VOF) approach was used to track the free surface displacement from water-air phases (Ishii et al, 2021).…”

Section: Numerical Modelmentioning

confidence: 99%

Numerical Investigation of Countermeasure Effects on Overland Flow Hydrodynamic and Force Mitigation in Coastal Communities

Dang

Shin

Lee

et al. 2022

J. Ocean Eng. Technol.

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The past few decades witnessed rapid population and socioeconomic development in coastal areas. However, low-lying coastal regions have been prone to extreme surges and high waves during hurricanes and tsunami events (Sun et al., 2020). Sweet et al. (2017) reported that the frequency and intensity of hazard events have increased significantly due to climate change, causing low-land areas to face unforeseeable damage. For instance, Hurricane Katrina (2005) resulted in destruction and severe damage to 133,000 houses in only the Mississippi area (Eamon et al., 2007). Hurricane Harvey (2017) severely damaged over 200,000 homes and businesses and induced massive rainfall that displaced over 30,000 people (Aghababaei et al., 2018). Significantly, the 2011 Japan earthquake-induced tsunami (M w = 9) damaged most countermeasures along the coasts and inundated further inland areas, ultimately causing a massive loss of approximately 15,844 human lives, 128,753 destroyed houses, and 245,376 partially destroyed houses (Aarup et al., 2012). Therefore, investigating mechanisms of overland flow driven by large waves and high surge levels in coastal regions is of great importance for minimizing its impacts and enhancing the resilience of coastal communities. The hydrodynamic characteristics of coastal communities under inundation flow impacts have caused extensive concern over the last decade. Several previous studies have been conducted to investigate the flow patterns surrounding buildings under overland flow impacts. Park et al. (2013) used a 1:50 scaled physical model to represent an idealized coastal community in Seaside, Oregon. This study experimentally investigated the transformation of free surface elevation, velocity, and momentum flux in the built environment and compared them with the results of numerical modeling. Qin et al. (2018) performed a high-resolution computational fluid dynamics (CFD) model based on OpenFOAM to simulate the tsunami inundation in an idealization of Seaside, Oregon, which was validated

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Section: Numerical Modelmentioning

confidence: 99%

Numerical Investigation of Countermeasure Effects on Overland Flow Hydrodynamic and Force Mitigation in Coastal Communities

Dang

Shin

Lee

et al. 2022

J. Ocean Eng. Technol.

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Scour Effects on Cyclic Response of Bucket Foundations under Waves and Currents

Liu

Chen

Liu

et al. 2021

Journal of Coastal Research

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Flow and Scour Analysis Around Monopole of Fixed Offshore Platform Using Method that Couples Computational Fluid Dynamics and Discrete Element Method

Song¹,

Jeon²,

Park³

2019

J. Ocean Eng. Technol.

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When an offshore foundation is exposed to waves and currents, local scour could develop around a pile and even lead to structural failure. Therefore, understanding and predicting the scour due to sediment transport around foundations are important in the engineering design. In this study, the flow and scour around a monopole foundation exposed to a current were investigated using a method that coupled the computational fluid dynamics (CFD) and discrete element method (DEM). The open source computation fluid dynamics library OpenFOAM and a sediment transport library were coupled in the OpenFOAM platform. The incipient motion of the particle was validated. The flow fields and sediment transport around the monopole were simulated. The scour depth development was simulated and compared with existing experimental data. For the upstream scour hole, the equilibrium scour depth could be reproduced qualitatively, and it was underestimated by about 23%.

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Parametric Study on Scouring around Suction Bucket Foundation

Cited by 5 publications

References 6 publications

Numerical Investigation of Countermeasure Effects on Overland Flow Hydrodynamic and Force Mitigation in Coastal Communities

Numerical Investigation of Countermeasure Effects on Overland Flow Hydrodynamic and Force Mitigation in Coastal Communities

Scour Effects on Cyclic Response of Bucket Foundations under Waves and Currents

Flow and Scour Analysis Around Monopole of Fixed Offshore Platform Using Method that Couples Computational Fluid Dynamics and Discrete Element Method

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