Hydrodynamic α-effect in a rotating stratified moist atmosphere driven by small-scale non-helical force - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles Geophysical & Astrophysical Fluid Dynamics Year : 2021

Hydrodynamic α-effect in a rotating stratified moist atmosphere driven by small-scale non-helical force

M. I. Kopp
  • Function : Author
V. V. Yanovsky
  • Function : Author

Abstract

In this paper we have studied the large-scale instability in a rotating stratified moist atmosphere with a small-scale turbulence. The axis of rotation of the medium is deviated from the vertical direction. The turbulence is excited by an external small-scale force with zero helicity and a low Reynolds number. The nonlinear equations of a vortex dynamo were obtained on the basis of the method of multiscale asymptotic expansions. The linear instability and stationary nonlinear modes were studied. The solutions in a form of localized vortex structures were obtained.
No file

Dates and versions

insu-03672358 , version 1 (19-05-2022)

Identifiers

Cite

M. I. Kopp, A. V. Tur, V. V. Yanovsky. Hydrodynamic α-effect in a rotating stratified moist atmosphere driven by small-scale non-helical force. Geophysical & Astrophysical Fluid Dynamics, 2021, 115, pp.551-576. ⟨10.1080/03091929.2021.1946802⟩. ⟨insu-03672358⟩
9 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More