Indonesia Conference Directory

Modelling of wave transformation above fringing reefs are usually quite challenging. The fringing reefs are usually characterized by very steep bottom slope, so that waves that propagate above this type of bottom are usually break. To simulate the wave propagation above fringing reefs, the wave model and its numerical implementation should able to describe shoaling, breaking, nonlinear wave-wave interactions as well as dispersion accurately. In this paper, we use a Boussinesq type of model to simulate the wave transformation above fringing reefs. The wave model is implemented numerically by using finite volume method with momentum conservative staggered grid. The model is called Staggered grid Variational Boussinesq (SVB). Results of numerical implementation is validated with experimental data from hydrodynamic laboratory. Various scenarios are investigated to study effects of fringing reefs in reducing wave height.