JETTY HEAD RUN UP AND OVERTOPPING ANALYSIS AT TUBAN BOOM BEACH USING FLOW3D

• Main Author: Rafi Raharja, Insan
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/80515
• Institution: Institut Teknologi Bandung

The term "overtopping" refers to the condition where waves surpass the crest of a breakwater structure, causing water to overflow onto the structure. This can lead to damage to the structure itself and pose a threat to objects protected by the structure. To observe run-up and overtopping on a jettyhead, Flow3D software was employed. Simulations and analyses were conducted using input data adjusted to the research location, namely Boom Tuban Beach. The input data included tidal fluctuations, jetty structure, bathymetry, and wave characteristics. Simulations were performed under various scenarios, altering the elevation of the water structure (HWS and MSL) as well as its porosity. The simulation and analysis results revealed that a jettyhead with gentle slope (MSL) exhibited a smaller overtopping volume flow rate compared to a jettyhead with steep slope (HWS). Furthermore, it was found that a porous jettyhead had a higher overtopping volume flow rate than a solid one. The overtopping volume flow rate for HWS jettyhead elevation was 0.272 m3/s for the west, 0.261 m3/s for transition I, 0.422 m3/s for the east, and 0.343 m3/s for transition II. For MSL jettyhead elevation, the overtopping volume flow rate was 0.185 m3/s for the west, 0.117 m3/s for transition I, 0.235 m3/s for the east, and 0.214 m3/s for transition II. Additionally, for porous HWS jettyhead, the overtopping volume flow rate was 0.456 m3/s for the west, 0.295 m3/s for transition I, 0.452 m3/s for the east, and 0.41 m3/s for transition II.