Structure of internal solitary waves in two-layer fluid at near-critical situation
Article
Article Title | Structure of internal solitary waves in two-layer fluid at near-critical situation |
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ERA Journal ID | 100 |
Article Category | Article |
Authors | Kurkina, O. (Author), Singh, N. (Author) and Stepanyants, Y. (Author) |
Journal Title | Communications in Nonlinear Science and Numerical Simulation |
Journal Citation | 22 (1-3), pp. 1235-1242 |
Number of Pages | 8 |
Year | 2015 |
Place of Publication | Amsterdam, Netherlands |
ISSN | 1007-5704 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.cnsns.2014.09.018 |
Abstract | A new model equation describing weakly nonlinear long internal waves at the interface between two thin layers of different density is derived for the specific relationships between the densities, layer thicknesses and surface tension between the layers. The equation derived and dubbed here the Gardner–Kawahara equation represents a natural generalisation of the well-known Korteweg–de Vries (KdV) equation containing the cubic nonlinear term as well as fifth-order dispersion term. Solitary wave solutions are investigated numerically and categorised in terms of two dimensionless parameters, the wave speed and fifth-order dispersion. The equation derived may be applicable to wave description in other media. |
Keywords | two-layer fluid; internal wave; nonlinear evolution equation; solitary wave; stationary multi-soliton |
ANZSRC Field of Research 2020 | 401207. Fundamental and theoretical fluid dynamics |
490101. Approximation theory and asymptotic methods | |
490109. Theoretical and applied mechanics | |
Public Notes | Copyright 2014 Elsevier B.V. Permanent restricted access to published version due to publisher copyright policy. |
Byline Affiliations | Nizhny Novgorod State Technical University, Russia |
School of Agricultural, Computational and Environmental Sciences | |
Computational Engineering and Science Research Centre | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2vx9/structure-of-internal-solitary-waves-in-two-layer-fluid-at-near-critical-situation
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