Formation of large-scale coherent structures in turbulent convection Academic Article uri icon

abstract

  • ABSTRACT: A new mean-field theory of turbulent convection is developed. In a shear-free turbulent convection the theory predicts the convective wind instability which causes formation of large-scale semi-organized fluid motions in the form of cells (convective wind). The theory predicts also the convective-shear instability in a sheared turbulent convection which results in appearance of large-scale semi-organized convective rolls. This instability can cause also a generation of convective-shear waves which have a nonzero …

publication date

  • September 15, 2004