Numerical investigation of the instability and nonlinear evolution of narrow-band directional ocean waves.

@article{Eliasson2010NumericalIO,
  title={Numerical investigation of the instability and nonlinear evolution of narrow-band directional ocean waves.},
  author={Bengt Eliasson and Padma Kant Shukla},
  journal={Physical review letters},
  year={2010},
  volume={105 1},
  pages={014501}
}
The instability and nonlinear evolution of directional ocean waves is investigated numerically by means of simulations of the governing kinetic equation for narrow-band surface waves. Our simulation results reveal the onset of the modulational instability for long-crested wave trains, which agrees well with recent large-scale experiments in wave basins, where it was found that narrower directional spectra lead to self-focusing of ocean waves and an enhanced probability of extreme events. We… CONTINUE READING

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