4 papers
The prediction of extreme uncertainty-production events in three-dimensional Navier-Stokes turbulence
Jin Ge, Joran Rolland, John Christos Vassilicos
We investigate the exponential growth of uncertainty energy in 3D Navier-Stokes turbulence, emphasising the intermittent and highly localized amplification/production of uncertaint…
Characterisation of a multistable turbulent wake: application of an improved regime identification with analytical model training
Ariane Barlet, Pierre Bragança, Christophe Cuvier +1
This article presents the experimental study and the modelling of the multistable jet in the wake of two side by side square bars separated by a distance at Reynolds number $R=…
Eulerian-Lagrangian scaling of the Lyapunov exponent in homogeneous turbulence
Jin Ge, Joran Rolland, John Christos Vassilicos
We present a heuristic derivation of the maximal Lyapunov exponent of homogeneous turbulence which yields two new relations, a sweeping relation and the scaling of the uncerta…
The interscale behaviour of uncertainty in three-dimensional Navier-Stokes turbulence
Jin Ge, Joran Rolland, John Christos Vassilicos
We derive the scale-by-scale uncertainty energy budget equation and demonstrate theoretically and computationally the presence of a self-similar equilibrium cascade of decorrelatio…