WAVE SKEWNESS AND ASYMMETRY STUDY USING WAVE PHASE RESOLVING MODEL

Recent research has revealed the contribution of wave skewness and asymmetry effects to the onshore sediment transport during low to mild wave conditions (Hsu et al, 2006). A new cross-shore morphological model is developed, where a fully nonlinear Boussinesq wave model of Shi et al (2012), FUNWAVE, is utilised to provide wave skewness and asymmetry information to drive a new near-bed sediment transport model. Through the phase-resolving wave model, the wave non-linearity can be obtained directly at every time step. The near-bed transport can therefore be predicted with better confidence.