Three-dimensional numerical wave tank simulations on fully nonlinear wave-current-body interactions Academic Article uri icon

abstract

  • A finite-difference scheme and a marker-and-cell (MAC) method are used for numerical wave tank (NWT) simulations to investigate the characteristics of nonlinear wave motions and their interactions with a stationary three-dimensional body in the presence of steady uniform currents. The Navier-Stokes (NS) equation is solved in the computational domain, and the boundary values are updated at each time-step by a finite-difference time-marching scheme in the frame of a rectangular coordinate system. The fully nonlinear kinematic free-surface condition is satisfied by the marker-density function technique developed for two fluid layers. The incident waves are generated from the inflow boundary by prescribing a velocity profile resembling the motions of a flexible flap wavemaker, and the outgoing waves are numerically dissipated inside an artificial damping zone located at the end of the tank. Using the NS-MAC NWT, nonlinear wave and current interactions around a stationary vertical truncated circular cylinder are studied, and the results are compared with the experimental results of Mercier and Niedzwecki, a time-domain NWT based on linear potential theory, a fully nonlinear NWT, and a second-order diffraction computation. SNAJ 2001.

published proceedings

  • Journal of Marine Science and Technology

author list (cited authors)

  • Park, J., Kim, M., & Miyata, H.

citation count

  • 34

complete list of authors

  • Park, Jong-Chun||Kim, Moo-Hyun||Miyata, Hideaki

publication date

  • December 2001