2000/09/15 by Arnaud Prigent, A. Prigent, O. Dauchot +4 · 3 citations
Computer Science · Engineering · Environmental Science · Physics and Astronomy · #Classical mechanics #Couette flow #Flow (mathematics) #Fluid Dynamics and Turbulent Flows #Homogeneous #Instability #K-epsilon turbulence model #K-omega turbulence model #Mechanics #Nonlinear Dynamics and Pattern Formation #Optics #Phenomenology (philosophy) #Physics #Plant Water Relations and Carbon Dynamics #Shear flow #Statistical physics #Taylor–Couette flow #Turbulence #Turbulence kinetic energy #Wavelength #cond-mat #nlin.PS #physics.flu-dyn
paper · pdf · doi:10.1103/physrevlett.89.014501
published as Phys. Rev. Lett. 89, 014501 (2002)
arxiv created 2000/09/15 · openalex publication_date 2002/06/14 · arxiv updated 2015/06/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We show that turbulent "spirals" and "spots" observed in Taylor-Couette and plane Couette flow correspond to a turbulence-intensity modulated finite-wavelength pattern which in every respect fits the phenomenology of coupled noisy Ginzburg-Landau (amplitude) equations with noise. This suggests the existence of a long-wavelength instability of the homogeneous turbulence regime.