Effect of wave height on harbor wall height in coastal waters using computational fluid dynamics

An essential aspect of the sustainable design of harbor walls is the determination of the design wave condition. It is predicted by utilizing severe wave conditions from the past 10 to 20 years. The tourism harbor in Central Maluku, Indonesia, is located where extreme wave conditions occur. Therefore, this research studies the wave height before and after constructing a harbor wall in the harbor area. The wave height was simulated using numerical modelling. The methodology was performed by using the coastal modelling software of the CFD model. The result shows the highest design wave height values of 0.5 m, 0.75 m, and 1 m in the direction from the southeast to harbor height 1 m. The simulation results show that the wave height is 1.5 m and the harbor height is still safe. Further study is needed to simulate the extension of harbor wall length to meet the criteria for wave height in the harbor basin.