Scientists Have Shed New Light on the Mysteriously Large Rogue Waves
Extreme nonlinear wave group dynamics in directional wave states.
This rogue wave behavior is caused by modulation instability, which happens only in unidirectional waves. When interacting with other wave systems, wave focusing is also expected to weaken.has now shown that such unstable wave groups propagate independently of interference. Their findings were recently published in the journalDemonstration of an unperturbed nonlinear water wave group focusing in the presence of counter-propagating waves, implying directional wave states.
Using a water wave tank, the team performed experiments validating results from computer simulations based on the coupled nonlinear Schrödinger equation. This nonlinear wave equation model accounts for complex interactions of waves propagating from two different directions.
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