Order Out of Chaos: Slowly Reversing Mean Flows Emerge from Turbulently Generated Internal Waves

We demonstrate via direct numerical simulations that a periodic, oscillating mean flow spontaneously develops from turbulently generated internal waves. We consider a minimal physical model where the fluid self-organizes in a convective layer adjacent to a stably stratified one. Internal waves are e...

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Veröffentlicht in:	Physical review letters 2018-06, Vol.120 (24), p.244505-244505, Article 244505
Hauptverfasser:	Couston, Louis-Alexandre, Lecoanet, Daniel, Favier, Benjamin, Le Bars, Michael
Format:	Artikel
Sprache:	eng
Schlagworte:	Computational fluid dynamics Computer simulation Convection Fluid flow Fluid mechanics Geophysical fluids Geophysics Internal waves Mathematical models Mechanics Physics Reversed flow Turbulence
Online-Zugang:	Volltext
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