DYNAMICS OF A FLOATING OBJECT ON THE WAVE SURFACE

• Main Author: Ulan Dini, Septian
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/70590
• Institution: Institut Teknologi Bandung

Objects floating on the surface of the waves is a phenomenon that can be found every day. One example is trash floating on the surface of sea waves. This study aims to validate the previously developed simulation program and describe the mechanism of motion of floating objects on the surface of the waves based on experimental results. The first purpose is to examine the characteristics of the waves in the wave pool. The second aim is to analyze the physical parameters that play a role in the dynamics of floating objects at certain wave ranges. The experiment was carried out by generating waves in a wave pool which previously had floating objects placed on its surface. The depth and frequency of the waves are varied based on the settings on the wave generator regulator. Experiments and simulations were carried out in 16 variations of conditions based on an experimental matrix with variations of floating objects and wave profiles. The simulation that has been developed has been validated qualitatively and quantitatively based on the experimental results. The experimental results show that floating objects experience a change in position as a function of time. Furthermore, the experimental results show that there are two types of waves, namely transitional water waves and deep-water waves in the frequency range used. Floating objects in this study varied based on diameter and density. The experimental results show that there are different drift velocity values based on the variation of the floating object and the type of wave it is passing through. Comparison of experimental and simulation results shows that the simulation program that has been developed has a relative error value of <5% and shows consistent results for deep water wave variations.