Numerical modeling of wave-current interaction in Merak Port, Indonesia

1st International Conference on Maritime Sciences and Advanced Technology "Ocean Science and Technology Toward a Global Maritime Axis"

Nurfitri, S.^1 ; Ningsih, N.S.^1 ; Sentanu, A.N.^1 ; Rachmayani, R.^1

Department of Oceanography, Bandung Institute of Technology, Jalan Ganesha 10, Bandung

40132, Indonesia^1

关键词: Adverse currents;    Maximum wave height;    Simulating waves;    Stationary modes;    Tidal currents;    Triangular grid;    Wave current interaction;    Wind velocity and direction;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/162/1/012007/pdf
DOI  :  10.1088/1755-1315/162/1/012007

来源: IOP

【 摘 要 】

This study aimed to investigate the effects of currents to wave height in the waters of Merak Port, Banten using wave spectrum model. The wave-current interaction simulation was performed by utilizing SWAN (Simulating Waves Nearshore) in stationary mode and using the unstructured triangular grid. Data of wind velocity and direction as model inputs were obtained from BMKG (Indonesian Agency for Meteorology, Climatology, and Geophysics), whereas tidal current velocity data was obtained from TMD (Tide Model Driver). The model was simulated in two different scenarios, i.e. without and with following (adverse) current which is same (opposite) with wave propagation. The model input of dominant west wind was used to represent the west monsoon, while the dominant wind from the north was used to represent the east monsoon. The simulation results show that the maximum wave height is 2.98 m in the west monsoon and 1.9 m in east monsoon. In the west (east) monsoon the following current decrease wave height to 9.26% (5.09%), while the adverse current increase wave height up to 9.07% (6.56%).