Optimal transient growth in thin-interface internal solitary waves

The dynamics of perturbations to large-amplitude internal solitary waves (ISWs) in two-layered flows with thin interfaces is analysed by means of linear optimal transient growth methods. Optimal perturbations are computed through direct–adjoint iterations of the Navier–Stokes equations linearized ar...

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Veröffentlicht in:	Journal of fluid mechanics 2018-04, Vol.840, p.342-378
Hauptverfasser:	Passaggia, Pierre-Yves, Helfrich, Karl R., White, Brian L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplitude Approximation Billows Breaking down Computational fluid dynamics Decay rate Density stratification Disturbances Dynamics Energy Evolution Experiments Fluids Formulas (mathematics) Gravitational waves Growth H waves Interfaces Internal waves JFM Papers Laboratories Mathematical analysis Mathematical models Navier-Stokes equations Perturbations Phase velocity Richardson number Solitary waves Stratification Turbulence Velocity Viscosity Wave packets Wavelengths
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