TY  - EJOU
AU  - Fedyushkin, Alexey 

TI  - Convection and Stratification of Temperature and Concentration
T2  - Fluid Dynamics \& Materials Processing

PY  - 2024
VL  - 20
IS  - 6
SN  - 1555-2578

AB  - This study is devoted to an analysis of natural convection and the emergence of delamination in an incompressible fluid encapsulated in a closed region heated from the side. Weak, medium and intensive modes of stationary laminar thermal and thermo-concentration convection are considered. It is shown that nonlinear flow features can radically change the flow structure and characteristics of heat and mass transfer. Moreover, the temperature and concentration segregation in the center of the square region display a non-monotonic dependence on the Grashof number (flow intensity). The formation of a nonstationary periodic structure of thermal convection in boundary layers and in the core of a convective flow in the closed region is also examined. Details of the formation of countercurrents inside the region with the direction opposite to the main convective flow are given. Finally, the influence of vertical and horizontal vibrations on oscillatory convection is analyzed in detail.
KW  - Natural convection; stratification; segregation; numerical simulation; vibrations

DO  - 10.32604/fdmp.2024.050267