2023•Physical Review FluidsRequires access
Transient inverse energy cascade in free surface turbulence
G. Boffetta, S. Musacchio, Andrea Mazzino, Marco Edoardo Rosti
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Abstract
The inverse cascade of energy is a peculiar feature of two-dimensional turbulence. Numerical and experimental studies have shown that it is possible to produce an inverse cascade also in a three-dimensional flow in a thin layer configuration. Here we study how the friction produced by the confining box induces three-dimensional fluctuations which disrupt the inverse cascade and eventually stop the transfer of energy to large scales.