Analysis on Interaction of Regular Waves and a Circular Column Structure

Song, Seongjin; Park, Sunho

doi:10.7846/jkosmee.2017.20.2.63

Cited by 2 publications

(1 citation statement)

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“…Therefore, studies are being conducted to understand the structural safety and motion performance of marine structures under environmental loads such as extreme waves and winds. Typical research topics include the wave run-up or air-gap due to design wave height, and model tests and numerical analysis techniques are being developed to understand such phenomena (Song and Park, 2017).…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on Wave Run-up of a Circular Cylinder with Various Diffraction Parameters and Body Drafts

Jeong

Koo

Kim

2020

J. Ocean Eng. Technol.

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Wave run-up is an important phenomenon that should be considered in ocean structure design. In this study, the wave run-up of a surface-piercing circular cylinder was calculated in the time domain using the three-dimensional linear and fully nonlinear numerical wave tank (NWT) techniques. The NWT was based on the boundary element method and the mixed Eulerian and Lagrangian method. Stokes second-order waves were applied to evaluate the effect of the nonlinear waves on wave run-up, and an artificial damping zone was adopted to reduce the amount of reflected and re-reflected waves from the sidewall of the NWT. Parametric studies were conducted to determine the effect of wavelength, wave steepness, and the draft of the cylinder on the wave run-up of the cylinder. The maximum wave run-up value occurred at 0°, which was in front of the cylinder, and the minimum value occurred near the circumferential angle of 135°. As the diffraction parameter increased, the wave run-up increased up to 1.7 times the wave height. Furthermore, the wave run-up was 4% higher than the linear wave when the wave steepness was 1/35. In particular, the crest height of the wave run-up increased by 8%.

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Section: Introductionmentioning

confidence: 99%