NUMERICAL MODEL FOR RUN-UP OF REGULAR AND IRREGULAR WAVES

• Main Author: Juanti Halim, Laurensia
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/47712
• Institution: Institut Teknologi Bandung

Indonesia has the second longest coastline in the world for over 54.000 km with approximately 65 percent of the population lives in the country’s coastlines. The country’s coastal areas are used as the central of government, residential area, industry, ports, aquaculture, and tourism. Hence, we need a sea defense structure in accordance to the coastal slope characteristics to protect the coastal area from the extreme waves phenomena. In this research, we propose a mathematical model to learn about the run-up phenomena on regular and irregular waves. This model is based on Shallow Water Equation that is modified by adding the advection term that serves as the non-linearity factor on this equation. This model will be solved numerically using the finite volume on a staggered grid method. For validation, we compare the numerical results with analytical solution using the variable separation method, the numerical solution will also be confirmed using experimental data. As a final observation, we believe that the result of this research can be implemented to predict the height of wave run-up and the risk occurred from a certain wave condition and also used a part of the assessment tools to build sea defense structure.