Verlagslink: http://arxiv.org/abs/2109.00789v1
Verlagslink DOI: 10.48550/arXiv.2109.00789
Titel: Simultaneous 2D and 3D turbulent flows in Faraday Waves
Sprache: Englisch
Autorenschaft: Colombi, Raffaele 
Rohde, Niclas 
Schlüter, Michael 
von Kameke, Alexandra  
Schlagwörter: Physics - Fluid Dynamics
Erscheinungsdatum: 2-Sep-2021
Verlag: Arxiv.org
Zeitschrift oder Schriftenreihe: De.arxiv.org 
Zusammenfassung: 
In nature turbulent flows exist that are neither simply 2D nor 3D but boundary conditions, such as varying stratification, force them towards the one or the other. Here, we report the first evidence of the co-existence of 2D and 3D turbulence in an experimental flow driven by Faraday waves in water. We find that an inverse energy cascade at the fluid surface and a direct energy cascade in the 3D bulk flow underneath exist simultaneously. We base our analysis on temporally and spatially well-resolved velocity fields measured at horizontal and vertical planes. The findings suggest that the strongly turbulent 2D surface flow drives the 3D bulk flow through sporadic vertical jets as a source of momentum.
URI: http://hdl.handle.net/20.500.12738/12936
Einrichtung: Department Maschinenbau und Produktion 
Fakultät Technik und Informatik 
Dokumenttyp: Vorabdruck (Preprint)
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