Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 121208 |
| Fachzeitschrift | Ocean engineering |
| Jahrgang | 331 |
| Frühes Online-Datum | 22 Apr. 2025 |
| Publikationsstatus | Veröffentlicht - 1 Juli 2025 |
Abstract
Expanding human activity into offshore marine areas presents significant challenges. Protecting offshore structures and the areas within them from the destructive forces of large waves is of primary importance. Bottom-founded breakwaters are effective in shallow waters, whereas floating or bottom-detached breakwaters are more suitable for deeper waters. This study explored the transmission coefficient (kt) of fixed box-type bottom-detached breakwaters (BDBs) with various dimensions under different wave conditions. A numerical wave flume based on Computational Fluid Dynamics (CFD) was validated using experimental measurements from a physical wave flume and employed to conduct a parametric study. The results indicated that the changes in wave steepness had a small effect on kt of BDBs, while significant decreases in kt were observed with the increase in relative draft (DFB/Lw) and relative width (WFB/Lw), where Lw presents wavelength. A predictive equation for kt was derived from the numerical results and validated using the numerical data and the experimental data from present and previous studies. Within WFB/Lw=0.004–0.43 and DFB/Lw = 0.001–0.21, the proposed equation demonstrated considerable accuracy with a relative error within the range of (−20 %, 20 %). The Root Mean Square Errors (RMSEs) of the kt predicted by the proposed equation and various experimental datasets were below 0.1.
ASJC Scopus Sachgebiete
- Umweltwissenschaften (insg.)
- Environmental engineering
- Ingenieurwesen (insg.)
- Meerestechnik
Ziele für nachhaltige Entwicklung
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in: Ocean engineering, Jahrgang 331, 121208, 01.07.2025.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Wave transmission of deep-draft box-type bottom-detached breakwaters
AU - Liu, Zihan
AU - Goseberg, Nils
AU - Cappietti, Lorenzo
N1 - Publisher Copyright: © 2025 Elsevier Ltd
PY - 2025/7/1
Y1 - 2025/7/1
N2 - Expanding human activity into offshore marine areas presents significant challenges. Protecting offshore structures and the areas within them from the destructive forces of large waves is of primary importance. Bottom-founded breakwaters are effective in shallow waters, whereas floating or bottom-detached breakwaters are more suitable for deeper waters. This study explored the transmission coefficient (kt) of fixed box-type bottom-detached breakwaters (BDBs) with various dimensions under different wave conditions. A numerical wave flume based on Computational Fluid Dynamics (CFD) was validated using experimental measurements from a physical wave flume and employed to conduct a parametric study. The results indicated that the changes in wave steepness had a small effect on kt of BDBs, while significant decreases in kt were observed with the increase in relative draft (DFB/Lw) and relative width (WFB/Lw), where Lw presents wavelength. A predictive equation for kt was derived from the numerical results and validated using the numerical data and the experimental data from present and previous studies. Within WFB/Lw=0.004–0.43 and DFB/Lw = 0.001–0.21, the proposed equation demonstrated considerable accuracy with a relative error within the range of (−20 %, 20 %). The Root Mean Square Errors (RMSEs) of the kt predicted by the proposed equation and various experimental datasets were below 0.1.
AB - Expanding human activity into offshore marine areas presents significant challenges. Protecting offshore structures and the areas within them from the destructive forces of large waves is of primary importance. Bottom-founded breakwaters are effective in shallow waters, whereas floating or bottom-detached breakwaters are more suitable for deeper waters. This study explored the transmission coefficient (kt) of fixed box-type bottom-detached breakwaters (BDBs) with various dimensions under different wave conditions. A numerical wave flume based on Computational Fluid Dynamics (CFD) was validated using experimental measurements from a physical wave flume and employed to conduct a parametric study. The results indicated that the changes in wave steepness had a small effect on kt of BDBs, while significant decreases in kt were observed with the increase in relative draft (DFB/Lw) and relative width (WFB/Lw), where Lw presents wavelength. A predictive equation for kt was derived from the numerical results and validated using the numerical data and the experimental data from present and previous studies. Within WFB/Lw=0.004–0.43 and DFB/Lw = 0.001–0.21, the proposed equation demonstrated considerable accuracy with a relative error within the range of (−20 %, 20 %). The Root Mean Square Errors (RMSEs) of the kt predicted by the proposed equation and various experimental datasets were below 0.1.
KW - Bottom-detached breakwater
KW - Experimental modelling
KW - Numerical wave flume
KW - Predictive equation
KW - Wave transmission
UR - http://www.scopus.com/inward/record.url?scp=105002949307&partnerID=8YFLogxK
U2 - 10.1016/j.oceaneng.2025.121208
DO - 10.1016/j.oceaneng.2025.121208
M3 - Article
AN - SCOPUS:105002949307
VL - 331
JO - Ocean engineering
JF - Ocean engineering
SN - 0029-8018
M1 - 121208
ER -