Wave-current interactions - A numerical model and simulations of wave propagation

A wave-current numerical model is developed for interactions between waves and current fields. Investigations are focused on the effects of currents on surface fluctuations, wave height and mean water level (set-down) distributions. Also, experimental studies on wave-current interactions are conducted in a wave flume and one-dimensional model predictions are compared with the experimental observations and wave-current analytical solutions. Comparative results depict that the model simulates the interactions quite well. Results also indicate that intensity and direction of a current modify wave crest and trough amplitudes. And wave-current interactions are significant in a region where the magnitude of a current is greater.