Periodic and Solitary Wave Solutions of the Long Wave–Short Wave Yajima–Oikawa–Newell Model

Marcos Caso Huerta, Antonio Degasperis, Priscila Leal da Silva, Sara Lombardo*, Matteo Sommacal

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Models describing long wave–short wave resonant interactions have many physical applications, from fluid dynamics to plasma physics. We consider here the Yajima–Oikawa–Newell (YON) model, which was recently introduced, combining the interaction terms of two long wave–short wave, integrable models, one proposed by Yajima–Oikawa, and the other one by Newell. The new YON model contains two arbitrary coupling constants and it is still integrable—in the sense of possessing a Lax pair—for any values of these coupling constants. It reduces to the Yajima–Oikawa or the Newell systems for special choices of these two parameters. We construct families of periodic and solitary wave solutions, which display the generation of very long waves. We also compute the explicit expression of a number of conservation laws.
Original languageEnglish
Article number227
Number of pages15
JournalFluids
Volume7
Issue number7
DOIs
Publication statusPublished - 4 Jul 2022

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