Wave Runup

Oral

1456 - Higly-Resolved Numerical And Laboratory Analysis For Nonbreaking Solitary Wave Swash Over A Steep Slope

Presenting Author(s)

• 

  Pablo Higuera, PhD

  Research Fellow
  National University of Singapore

Additional Author #1(s)

• PL

  Philip Liu, ScD

  Distinguished Professor
  National University of Singapore and Cornell University

Additional Author #2(s)

• CL

  Cheng Lin

Additional Author #3(s)

• WW

  Wei-Ying Wong

Additional Author #4(s)

• MK

  Ming-Jer Kao

In this paper we study the swash processes generated by a nonbreaking solitary wave running up and down a steep slope (1:3). We use experimental data to study flow features and velocities inside the boundary layer, and numerical modelling to investigate variables not measured during the laboratory experiments, such as pressures and bottom shear stress. We focus on the mechanisms that produce flow separation and vortex formation. Particularly, we study a system of vortices generated under a hydraulic jump during the rundown phase, which was first observed by Matsunaga & Honji (1980).