Date

2023-1-20

Author

Gazaloğlu, Günay

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The floating platforms become advantageous in coastal areas for protection as it has flexibility in design, transportability, and low construction cost. However, wave period and wave height are restrictive parameters in the design stages of these platforms. Relatively short-wave periods and low wave heights are required to use floating platforms appropriately. This study aimed to analyze the transmission coefficient of a floating platform under the attack of irregular and regular waves having different wave steepnesses at different water depths. In the physical model experiments, two types of floating structures were tested: rectangular box and horizontal cylinder-type structures. The box was tested at 50 cm of water depth under regular waves and the horizontal pipe platform was tested under irregular and regular waves at 40, 50, and 60 cm water depths for all wave sets. To understand the relation between the single dependent variable and several independent variables, a multiple regression method was applied, and wave transmission formulas were developed for the horizontal cylinder structures, separately for irregular and regular waves. Moreover, computational fluid dynamics (CFD) analyses of wave transmission and energy dissipation for the box and the selected horizontal cylinder-type platform were carried out to validate the CFD model and to extend the experimental dataset using an open-source CFD library OpenFOAM v1912 together with waves2FOAM wave generation and absorption package

Subject Keywords

Floating platforms, Wave attenuation, Wave transmission, Energy dissipation, Cfd modelling

URI

https://hdl.handle.net/11511/101991

Collections

Graduate School of Natural and Applied Sciences, Thesis