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Numerical Simulation of Jet-like Currents Influenced by Irregular Waves  

Choi, Jun-Woo (Dept. of Civil Engineering, Hanyang University)
Park, Won-Kyung (Dept. of Civil Engineering, Hanyang University)
Bae, Jae-Seok (Dept. of Civil Engineering, Hanyang University)
Yoon, Sung-Bum (Dept. of Civil & Environ. Engrg.)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.20, no.5, 2008 , pp. 491-497 More about this Journal
Abstract
The effect of wave and current interactions on jet-like current flowing against waves was investigated based on numerical simulations. The numerical simulations were conducted using a model system of REF/DIF(a wave model) and SHORECIRC(a current model). In the simulations, irregular waves refracted due to the jet-like opposing current were focused along the centerline of current, and the jet-like current was spreaded earlier when the wave heights become larger. The numerical results show that the rapid change of wave height distribution in transverse direction near current inlet plays a significant role to spread the jet-like current. In other words, the radiation stress gradients acting in transverse direction have a more significant effect on the jet-like current than its gradients acting in flowing direction which tend to accelerate the current do. In conclusion, it is indispensible to take into account the interaction between waves and current when the jet-like current such as river mouth meets opposing waves.
Keywords
Jet-like current; irregular waves; wave refraction; wave-current interaction; numerical simulation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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