Lyapunov spectrum of forced homogeneous isotropic turbulent flows
Lyapunov spectrum of forced homogeneous isotropic turbulent flows
A local point of view is adopted on the chaoticity of turbulent flow, using the Lyapunov analysis. Among other findings, it is found that chaotic perturbation growth is a highly localized phenomenon that occurs in regions of high-velocity gradient but not in regions of high turbulence intensity.