On the Boussinesq hypothesis for a stochastic Proudman-Taylor model

Abstract

We introduce a stochastic version of Proudman-Taylor model, a 2D-3C fluid approximation of the 3D Navier-Stokes equations, with the small-scale turbulence modeled by a transport-stretching noise. For this model we may rigorously take a scaling limit leading to a deterministic model with additional viscosity on large scales. In certain choice of noises without mirror symmetry, we identify an AKA effect. This is the first example with a 3D structure and a stretching noise term.

38 pages

References in corpus (3)

• Quantitative convergence rates for scaling limit of SPDEs with transport noise
• Regularization by transport noise for 3D MHD equations
• Noise based on vortex structures in 2D and 3D