Nonlinear Processes in Geophysics
Nonlinear Processes in Geophysics
Nonlinear Processes in Geophysics
Articles | Volume 25, issue 3
Articles | Volume 25, issue 3
Nonlin. Processes Geophys., 25, 659–669, 2018
https://doi.org/10.5194/npg-25-659-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Extreme internal wave events

Nonlin. Processes Geophys., 25, 659–669, 2018
https://doi.org/10.5194/npg-25-659-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 3

Research article 05 Sep 2018

Research article | 05 Sep 2018

Internal waves in marginally stable abyssal stratified flows

Nikolay Makarenko1,2, Janna Maltseva1,2, Eugene Morozov3, Roman Tarakanov3, and Kseniya Ivanova4 Nikolay Makarenko et al.
Show author details
  • 1Lavrentyev Institute of Hydrodynamics, 6300090, Novosibirsk, Russia
  • 2Novosibirsk State University, Department of Mechanics and Mathematics, 630090, Novosibirsk, Russia
  • 3Shirshov Institute of Oceanology, 117997, Moscow, Russia
  • 4Aix-Marseille University, Department of Mechanics, Marseille 06, France
Received: 11 Jan 2018 – Discussion started: 26 Jan 2018 – Revised: 13 Jun 2018 – Accepted: 10 Jul 2018 – Published: 05 Sep 2018

Abstract. The problem on internal waves in a weakly stratified two-layer fluid is studied semi-analytically. We discuss the 2.5-layer fluid flows with exponential stratification of both layers. The long-wave model describing travelling waves is constructed by means of a scaling procedure with a small Boussinesq parameter. It is demonstrated that solitary-wave regimes can be affected by the Kelvin–Helmholtz instability arising due to interfacial velocity shear in upstream flow.

How to cite. Makarenko, N., Maltseva, J., Morozov, E., Tarakanov, R., and Ivanova, K.: Internal waves in marginally stable abyssal stratified flows, Nonlin. Processes Geophys., 25, 659–669, https://doi.org/10.5194/npg-25-659-2018, 2018.
Special issue
Extreme internal wave events
Download
Short summary
The problem on internal waves in a weakly stratified two-layered fluid is studied semi-analytically. We discuss the 2.5-layer fluid flows with exponential stratification of both layers. The long-wave model describing travelling waves is constructed by means of a scaling procedure with a small Boussinesq parameter. It is demonstrated that solitary-wave regimes can be affected by the Kelvin–Helmholtz instability arising due to interfacial velocity shear in upstream flow.
Read more