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Single waves with high amplitudes, sometimes called rogue, or killer waves, appear surprisingly on the ocean and sea surface. Such waves are very dangerous for ships and for coastal structures due to their destructive high steepness and height. Is there ability to creation of these killer unidirectional waves in laboratory channel, in order to future tests of the ships and the coastal structures ability to withstand the impact, was studied. The spatial Zakharov equation is applied in the present study. Evolution of unidirectional nonlinear wave groups with wide spectra was studied…mehr

Produktbeschreibung
Single waves with high amplitudes, sometimes called
rogue, or killer waves, appear surprisingly on the
ocean and sea surface. Such waves are very dangerous
for ships and for coastal structures due to their
destructive high steepness and height. Is there
ability to creation of these killer unidirectional
waves in laboratory channel, in order to future tests
of the ships and the coastal structures ability to
withstand the impact, was studied. The spatial
Zakharov equation is applied in the present study.
Evolution of unidirectional nonlinear wave groups
with wide spectra was studied experimentally and
numerically. A focusing of an initially wide wave
train that is modulated into a single steep wave at a
prescribed location along the wave channel was
investigated. The experimental study was carried out
in two wave channels: a 330 m long Large Wave Channel
in Hanover, and an 18 m long Tel-Aviv University wave
tank. The study allows concluding that the
unidirectional spatial Zakharov equation can serve as
an effective computational model for description of
evolution along the wave channel of nonlinear wave
fields with no limits on their spectral width.
Autorenporträt
Konstantin Goulitski received his M.Sc. degree as an
engineer-physicist from the Kazan State Technical University in
1994. He got his Ph.D. degree in thermal and molecular physics
from the same University in 1997. He got his Ph.D. degree in
experimental and numerical study of unidirectional nonlinear wave
groups from Tel-Aviv University in 2007.