2000/05/03 by W. Brent Daniel, Daniel, W. Brent, Maarten A. Rutgers +1
Engineering · Physics and Astronomy · #Aerodynamics and Acoustics in Jet Flows #Chaotic Dynamics (nlin.CD) #FOS: Physical sciences #Fluid Dynamics and Turbulent Flows #Particle Dynamics in Fluid Flows #nlin.CD
paper · pdf · doi:10.48550/arxiv.nlin/0005008
4 pages, 4 figures
arxiv created 2000/05/03 · openalex publication_date 2000/05/03 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We find strong evidence for intermittency in forced two dimensional (2D) turbulence in a flowing soap film experiment. In the forward enstrophy cascade the structure function scaling exponents are nearly indistinguishable from 3D studies. Intermittency corrections are present in the inverse energy cascade as well, but weaker. Stretched exponential tails of the velocity difference probability distribution functions and shock like events at large velocity differences also resemble 3D studies. For decaying turbulence, where only the forward enstrophy cascade remains, all signs of intermittency disappear.