Wave-induced current at Anmok Beach, Korea

3rd International Conference on Water Resource and Environment

地球科学;生态环境科学

Kim, H.^1 ; Park, D.^1 ; Lee, S.^1 ; Lim, H.-S.^2

Kookmin University, Department of Civil Engineering, Seoul, Korea, Republic of^1

Coastal Disaster Research Center, Korea Institute of Ocean Science and Technology, Ansan, Korea, Republic of^2

关键词: Alongshore current;    Deviation angles;    Instantaneous current;    Measured currents;    Normal direction;    Shallow water depths;    Wave-dominated;    Wave-induced currents;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/82/1/012012/pdf
DOI  :  10.1088/1755-1315/82/1/012012

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Currents were measured at two stations on Anmok Beach, and were reproduced by a numerical model system CST3D-WA. Anmok area is known as wave-dominated coast, and the mean tidal range small. Field data with strong wave-induced current are rare, especially at shallow water depth. Measured currents were strong during three periods. The largest instantaneous current speed at a station during a period was 46 cm/s. CST3D-WA system simulated wave-induced current for the three periods, and compared with measurements. The deviation of the incident peak wave direction from the normal direction to the shoreline strongly affects the wave-induced current speed and direction. When the deviation angle crosses the normal direction, the wave-induced alongshore current direction changes between SE and NW. CST3D-WA is thought to have successfully reproduced the wave-induced current fields on this beach.