Prediction of Pier Scour Depth under Extreme Typhoon Storm Tide DOI Creative Commons
Zongyu Li, Weiwei Lin,

Dongdong Chu

et al.

Journal of Marine Science and Engineering, Journal Year: 2024, Volume and Issue: 12(8), P. 1244 - 1244

Published: July 23, 2024

The Western Pacific region is highly vulnerable to typhoon storm surge disasters, with localized erosion posing a particularly prominent issue for coastal marine structures. prevalence of extreme surges poses significant threat the safety engineering projects in these areas. In this study, parameterized wind field model precise calculation speed was employed establish numerical tides. Based on data from 1949 2023, hydraulic simulations were conducted Hangzhou Bay, Xiangshan Port, and Yueqing revealing maximum flow velocities 4.5 m/s, 1.95 2.09 respectively. These exceeded possible tidal by 0.47–1.17 m/s. Additionally, using Sun’s velocity formula, initiation calculated be 1.85 1.81 2.06 m/s aforementioned locations. Through tests around typical bridge piers subsequent application similarity criteria, depth study area determined range 2.16 m 16.1 m, which corresponds 1.1–2.3 times scour caused scenario. A comparison test results calculations based several formulas demonstrated that prediction formula proposed Sun exhibited highest accuracy. This supplements understanding impact pier provides scientific basis design foundations.

Language: Английский

Performance of various wind models for storm surge and wave prediction in the Bay of Bengal: A case study of Cyclone Hudhud DOI
Maneesha Sebastian, Manasa Ranjan Behera, Kumar Ravi Prakash

et al.

Ocean Engineering, Journal Year: 2024, Volume and Issue: 297, P. 117113 - 117113

Published: Feb. 19, 2024

Language: Английский

Citations

5
Numerical Simulation of Typhoon Waves in an Offshore Wind Farm Area of the South China Sea DOI Creative Commons
Baofeng Zhang, Xu Li, Lizhong Wang

et al.

Journal of Marine Science and Engineering, Journal Year: 2025, Volume and Issue: 13(3), P. 451 - 451

Published: Feb. 26, 2025

Environmental load data are an essential input for the analysis of offshore wind structures in typhoon-prone marine environments. However, numerical simulations typhoon waves lack a systematic examination specific influence trajectories on spatial evolution wave fields. In particular, intricate mechanisms governing propagation within farm areas remain poorly understood. This present study, drawing upon real-world case area South China Sea, employs Finite Volume Coastal Ocean Model–Surface Wave Module (FVCOM–SWAVE) wave–current coupling model to assess joint wind–wave distribution characteristics during 35 events. The findings reveal that fields exhibit notable rightward bias. As approach coast, significant height decreases progressively due breaking, friction, refraction, and nonlinear interactions. During passage typhoons Prapiroon, Hato, Mangkhut, closely correlated with speed distribution. By constructing function sea elements, different return periods can be obtained, providing important oceanic environmental inputs design structures.

Language: Английский

Citations

0
Explanations for the positive storm surges on the left side of landfall typhoons in China DOI Creative Commons

Weiqi Wan,

Xingru Feng,

Baoshu Yin

et al.

Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 11

Published: June 4, 2024

The coastal regions of Southeast China frequently experience unusual positive storm surges on the left side landfalling typhoons, a phenomenon historically overlooked and inadequately explained by conventional circular wind field models. In this study, high resolution, two-dimensional surge model based ADCIRC along with tide gauge data were used to investigate spatiotemporal distribution these proposes underlying mechanisms, informed comparative analysis ERA5 reanalysis fields during typical typhoon event 9711 Winnie. Analyzing spanning from 1986 2016, study uncovers distinct pattern left-side southeastern coast, notably Fujian coast within Taiwan Strait, which are found be comparable those cyclone’s right side. research also documents significant escalation in both frequency intensity over past three decades. Simulation results highlights inadequacies models operational forecasting emphasizes necessity accounting for topographic influences structural complexity predictions. This is particularly pertinent semi-enclosed seas intricate hydrodynamics, such as Strait. insights gleaned pivotal enhancing real-time simulation prediction surges, vital safety disaster prevention measures.

Language: Английский

Citations

0
Prediction of Pier Scour Depth under Extreme Typhoon Storm Tide DOI Creative Commons
Zongyu Li, Weiwei Lin,

Dongdong Chu

et al.

Journal of Marine Science and Engineering, Journal Year: 2024, Volume and Issue: 12(8), P. 1244 - 1244

Published: July 23, 2024

The Western Pacific region is highly vulnerable to typhoon storm surge disasters, with localized erosion posing a particularly prominent issue for coastal marine structures. prevalence of extreme surges poses significant threat the safety engineering projects in these areas. In this study, parameterized wind field model precise calculation speed was employed establish numerical tides. Based on data from 1949 2023, hydraulic simulations were conducted Hangzhou Bay, Xiangshan Port, and Yueqing revealing maximum flow velocities 4.5 m/s, 1.95 2.09 respectively. These exceeded possible tidal by 0.47–1.17 m/s. Additionally, using Sun’s velocity formula, initiation calculated be 1.85 1.81 2.06 m/s aforementioned locations. Through tests around typical bridge piers subsequent application similarity criteria, depth study area determined range 2.16 m 16.1 m, which corresponds 1.1–2.3 times scour caused scenario. A comparison test results calculations based several formulas demonstrated that prediction formula proposed Sun exhibited highest accuracy. This supplements understanding impact pier provides scientific basis design foundations.

Language: Английский

Citations

0