2008 年 24 巻 p. 897-902
This study investigates experimentally wave-current interaction and proposes a numerical model to simulate hydrodynamics in wave-current coexisting fields. The experimental results show that the wave height increases initially, and then decreases gradually with the wave propagations. Decrease of wave celerity causes deformations of wave crest lines, which results in the convergence of waves near the river mouth. Furthermore, the current velocity decreases with continuous wave-current interactions. The wave period, the intensity of currents, and the angle of the incident wave are confirmed to be key parameters to govern the wave-current interaction. The proposed numerical model is found to reproduce well the experimental results.