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The paper is devoted to the study of natural convection and the formation of delamination in an incompressible liquid due to convective laminar flows in a closed region heated from the side. Weak, medium and intensive modes of stationary laminar thermal, concentration and hemoconcentration (thermohaline) convection are considered, in which nonlinear flow features are manifested that can radically change the flow structure and characteristics of heat and mass transfer. Nonmonotonic dependences of temperature and concentration segregation in the center of the square region on the Grashof number (an intensity of flow) were found. The features of the formation of a nonstationary periodic structure of thermal convection in boundary layers and in the core of a convective flow in a closed region are shown. Details of the formation of countercurrents inside the region with the direction opposite to the main convective flow are given. The influence of vertical and horizontal vibrations on oscillatory convection is shown.
A. I. Fedyushkin (Fri,) studied this question.