Simulation for Wave Tank

Wave Tanks of hydro-dynamic laboratories are mainly used to test (on scale) ships in waves that should be as realistic as possible. Computer simulations can increase the operationability: simulate desired waves a priori to the experiment, or derive statistical properties from long simulations.

HAWASSI-AB (Hamiltonian Wave -Ship &-Structure Interactions – Analitical Boussinesq) is perfectly suited for such simulations:

  • Exact dispersion for all wave lengths
  • Nonlinear effects 2nd, 3th and 4th order
  • Breaking waves
  • Varying bathymetry
  • Inclusion of (partially reflecting) wall
  • Run-up
  • Post-processing for force calculations

Examples of simulation vs experiment in hydrodynamic wave tank:

The video shows an experiment of focusing wave group (breaking) that is performed in TU Delft, the Netherlands, wave tank. The HAWASSI-AB is used for designing the signal. Plots in the right part show the measurement and simulation matched very well. More information about HAWASSI:

The video shows a simulation of splling wave breaking above a sloping bottom by using HAWASSI-AB software. The simulation results are compared with experimental data of Ting & Kirby 1994. More information about HAWASSI:

The animation shows the simulations of irregular wind waves that propagate above an uneven bottom (a slope with steepness 1:20) performed using HAWASSI software. The simulation results are compared with experimental data from MARIN (Maritime Research Institute Netherlands). After 2 hours of simulation, the simulation results still match the experimental data. More information about HAWASSI: