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Dynamics of irregular wave fields in the Schamel equation framework

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arxiv 2408.17411 v1 pith:JO23BUW5 submitted 2024-08-30 physics.flu-dyn

classification physics.flu-dyn
keywords wavedynamicsfieldsdispersionequationnonlinearitynumberschamel
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The present article is devoted to the study of the dynamics of narrowband wave fields within the non-integrable Schamel equation, which plays an important role in plasma physics, wave dynamics in metamaterials, and electrical circuits. A Monte Carlo approach is used to obtain a large number of random independent realizations of the wave fields, allowing for an investigation of the evolution of the following statistical characteristics: spectra, moments, and distribution functions. The simulations are conducted for different values of the Ursell number (the ratio of nonlinearity to dispersion) to study the impact of nonlinearity and dispersion on the processes under consideration.

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