Saturation of a large scale instability and non linear stuctures in a rotating stratified flow

2014/06/16 by Tur, Anatoly, Chabane, Malik, Yanovsky, Vladimir
#FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn)

paper · doi:10.48550/arxiv.1406.3962

Abstract

In this letter, we present non linear structures resulting from the saturation of a large scale instability in rotating stratified fluids with small scale forced turbulence which we found in \cite[1]. These structures are of helical kinks type. The different solutions that we plotted correspond to solutions linking two different stationnary points for different values of the Rayleigh and the Taylor numbers.

Related

• A new large scale instability in rotating stratified fluids driven by small scale forces
• Nonlinear vortex structures in obliquely rotating stratified fluids driven by small scale non helical forces
• Large-scale instability in hydrodynamics with stable temperature stratification driven by small-scale helical force
• The Large scale instability in rotating fluid with small scale force
• Linking dissipation, anisotropy and intermittency in rotating stratified turbulence