STUDI DIFRAKSI GELOMBANG MENGGUNAKAN PERSAMAAN HIPERBOLA
ABSTRACT: The deformation of
wave is the change of wave characteristics that occurs when a wave propagates
shoreward. One form of the deformation of wave is diffracted wave. Wave
diffraction occurs when a wave is blocked by a barrier which is a breakwater or
an island. As a result, the wave will turn around the tip of the barrier and
heading into a sheltered area behind it. In this event, the energy transfer
occurs in the perpendicular direction to the protected area. The phenomenon of wave
diffraction is an important thing to consider in the harbor and breakwater
design. To determine the wave diffraction pattern caused by obstacles or
coastal structures, wave propagation simulation has been carried out with
mathematical or numerical models for several scenarios. In this study,
two-dimensional wave simulation software using hyperbolic equations has been
used tomodel wave propagation. The result obtained from this study is the
diffraction coefficient whosevalue which is approximately equal to the ones
suggested by the Shore Protection Manual (SPM, 1984). Changes in the pattern of
the wave occur after the wave propagates through a single or double breakwater.
This study also investigated the changes in the wave height and the amount ofdominant
wave period due to the influence of the breakwater. Both events indicate the occurrence
of phenomenon of diffraction.
Penulis: Rama Kapitan
Kode Jurnal: jptsipildd140793
