영일만에서 해면매립에 따른 반사파의 영향

Effect of wave reflection due to a recalmation in Youngil bay

The effect of reflection wave due to a reclamation in Youngil Bay is discussed. The numerical experiments are performed with the design waves of 50 years frequency. The system of grid nets is composed of large and small fields. The mild slope equation of elliptic type is adopted in the large field and the unsteady mild slope equation of hyperbolic type is also applied to the small field. The energy equation of wave breaking and bottom friction is incorporated with each other to estimate the energy dumping. After reclamation, the maximum change of wave height increases up to the 1.4 times. But the effective boundary of reflection wave is restricted within a small area.