Diffraction of waves by multi-pontoon rectangular floating breakwaters.
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| Title: | Diffraction of waves by multi-pontoon rectangular floating breakwaters. |
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| Authors: | Masoudi, Esmaeel1,2 (AUTHOR) e.masoudi@bristol.ac.uk, Marshall, Adam2 (AUTHOR) |
| Source: | Ocean Engineering. Oct2024:Part 2, Vol. 310, pN.PAG-N.PAG. 1p. |
| Subjects: | Wave diffraction, Reflectance, Ocean conditions (Weather), Exponential functions, Pontoons |
| Abstract: | This paper explores the hydrodynamic characteristics of multi-pontoon rectangular floating breakwaters (FBs) in finite-depth water with an infinite domain, subjected to sinusoidal waves. Employing a numerical panel method, a comprehensive parametric analysis is conducted to evaluate the impact of pontoon number (N), pontoon spacing, and chamber height, specifically on transmission and reflection coefficients. The results indicate that multi-pontoon FBs outperform regular rectangular FBs and the two-legged FBs described in Masoudi and Gan (2021), making them a preferable choice in rough sea conditions or where wave attenuation is critical. Interestingly, increasing the pontoon number does not necessarily elevate the maximum diffraction wave amplitude; instead, it alters the diffraction wave frequency, resulting in lower transmission coefficients. Maximum diffraction wave amplitudes exhibit a linear function concerning the reflection coefficient for N = 1 and a weak exponential function for N > 1. • Hydrodynamic analysis is carried out for rectangular multi-pontoon FBs. • A numerical panel method is used. • Transmission and reflection coefficients are derived in different pontoon numbers. • Diffraction wave formation induces a jump in exciting forces. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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