Simulation study of a semi_circular Caisson Breakwater in a Non-uniform State in a Shallow Water Situation

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Ahmadpoor Babak; AHMADZADEHTALATAPEH MOHAMMAD; NEGAHDARI MOHAMMADREZA

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Journal: Modeling in Engineering Year:2020 | Volume:18 | Issue:60 Page(s): 183-199

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Title

Simulation study of a semi_circular Caisson Breakwater in a Non-uniform State in a Shallow Water Situation

Author(s)

Ahmadpoor Babak | AHMADZADEHTALATAPEH MOHAMMAD | NEGAHDARI MOHAMMADREZA | Issue Writer Certificate

Keywords

BreakwaterQ1

SimulationQ2

Star CCM++Q1

Abstract

Breakwater is a coastal-offshore structure which is used to protect the harbors and shores from waves and coastal streams. Breakwaters decrease the height of the waves and reduce the energy of the waves before reaching the harbors. The height of the streams near harbors with shallow waters is very high in comparison to deep waters situation. Due to the time consuming and high cost of experimental study of a typical Breakwater, the present study was conducted via the Star CCM+ Software. To this end, the composite semi-circular Breakwater was modeled under three different water line conditions. The Simulation space for all the three conditions was the RANS equations. The results were compared and verified by the numerical and experimental results. It was found that the Simulation results are in acceptable agreement with the reported experimental and numerical results. Therefore, the physical modeling and Simulation field of the studied structure can be employed for Simulation of the static coastal-offshore structures. The use of semi-circular breakers in deep waters encounter with problems such as required space and construction materials. Therefore, a composite semi-circular breaker was modeled and investigated to tackle these problems. Based to the results, the drag on composite semi-circular breaker increases in comparison with the original structure; however, due to the design specifications of the structure, the semi-circular breaker occupies less space and is suitable for application in deep waters.

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