Abstract
The increasing importance of the sustainability challenge in ocean engineering has led to the development of floating structure of various configurations. In this study, a numerical wave tank based on the Navier-Stokes equations has been established. The turbulence model, namely standard k-ε is incorporated to the numerical tank to broaden applicability of simulation. The VOF method has been widely used in the free-surface hydrodynamic flows with good accuracy. The wave impact phenomenon is extremely complicated and restriction of experimental condition. To better understand the mechanisms and rules of wave slamming on the floating structure, in the first instance, this study simplifies the problem and assumes 5 key gestures for floating structure with inclined angles (10°, 5°, 0°, -5° and -10°) and secondly, a periodic motion deck model has been established. The computation result is in good agreement with the experimental data. The numerical method can predict the impact peak pressure and the distribution of wave impact along underside of the inclined deck. It is also significant to research the wave impact force of the inclined deck and has great scientific value and practical significance.
Highlights
As mining technology has a development, offshore oil exploration and development have been proposed requirements into the deep sea around the world
Superstructures of breakwaters, decks of jetties or platforms, elements of balustrades, etc., are typical elements of maritime structures supported above still water level
The study presents the numerical simulation of the wave slamming on the deck of different inclined angles and the contrastive analysis by the experimental investigation
Summary
As mining technology has a development, offshore oil exploration and development have been proposed requirements into the deep sea around the world. The potential deck impact, of ocean structures under waves get generally of considerable interest. The study presents the numerical simulation of the wave slamming on the deck of different inclined angles and the contrastive analysis by the experimental investigation. Governing equations: The numerical model VOF, VOF-algorithm for breaking waves on structure is based on the original SOLA-VOF code (Nichols et al., 1980) capable of treating low-speed flows involving arbitrary free surface configurations. The free surface is capture by the VOF method This is made possible by means of a fluid fraction function F (x, y, t), which has a value between unity and zero, representing the volume fraction of a cell being occupied by a fluid.
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