ABSTRACT
Hydrodynamics at the toe of the landward-side levee slope is the concern of many studies where the flow has high speed, high turbulence, and small thickness. This chapter presents the two numerical methods that are used to investigate the overtopping hydraulics at the toe of the landward-side slope of high-performance turf reinforcement mats (HPTRM)- and roller-compacted concrete-strengthened levee under combined wave overtopping and storm surge overflow. The Princeton Ocean Model - wetting and drying model was used to simulate the incidence of random waves on an HPTRM strengthened levee during the combined wave overtopping and storm surge turbulent overflow. The conceptual model of a levee embankment strengthened by HPTRM on the crest and along the landward-side slope had the same geometry as the levee embankment built during the full-scale overtopping tests explained. Sensitivity analyses were conducted to assess how the Smoothed Particle Hydrodynamic model is affected by two key parameters, including particle distance and smoothing length.
