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Super-rogue waves in simulations based on weakly nonlinear and fully nonlinear hydrodynamic equations

Super-rogue waves in simulations based on weakly nonlinear and fully nonlinear hydrodynamic... The rogue wave solutions (rational multibreathers) of the nonlinear Schrödinger equation (NLS) are tested in numerical simulations of weakly nonlinear and fully nonlinear hydrodynamic equations. Only the lowest order solutions from 1 to 5 are considered. A higher accuracy of wave propagation in space is reached using the modified NLS equation, also known as the Dysthe equation. This numerical modeling allowed us to directly compare simulations with recent results of laboratory measurements in Chabchoub ( Phys. Rev. E PLEEE8 1539-3755 10.1103/PhysRevE.86.056601 86 , 056601 ( 2012 ) ). In order to achieve even higher physical accuracy, we employed fully nonlinear simulations of potential Euler equations. These simulations provided us with basic characteristics of long time evolution of rational solutions of the NLS equation in the case of near-breaking conditions. The analytic NLS solutions are found to describe the actual wave dynamics of steep waves reasonably well. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review E American Physical Society (APS)

Super-rogue waves in simulations based on weakly nonlinear and fully nonlinear hydrodynamic equations

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References (59)

Publisher
American Physical Society (APS)
Copyright
©2013 American Physical Society
ISSN
1539-3755
DOI
10.1103/PhysRevE.88.012909
pmid
23944540
Publisher site
See Article on Publisher Site

Abstract

The rogue wave solutions (rational multibreathers) of the nonlinear Schrödinger equation (NLS) are tested in numerical simulations of weakly nonlinear and fully nonlinear hydrodynamic equations. Only the lowest order solutions from 1 to 5 are considered. A higher accuracy of wave propagation in space is reached using the modified NLS equation, also known as the Dysthe equation. This numerical modeling allowed us to directly compare simulations with recent results of laboratory measurements in Chabchoub ( Phys. Rev. E PLEEE8 1539-3755 10.1103/PhysRevE.86.056601 86 , 056601 ( 2012 ) ). In order to achieve even higher physical accuracy, we employed fully nonlinear simulations of potential Euler equations. These simulations provided us with basic characteristics of long time evolution of rational solutions of the NLS equation in the case of near-breaking conditions. The analytic NLS solutions are found to describe the actual wave dynamics of steep waves reasonably well.

Journal

Physical Review EAmerican Physical Society (APS)

Published: Jul 19, 2013

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