Численное исследование сопряжённой естественной конвекции в замкнутых областях с локальными источниками энергии различных форм решёточным методом Больцмана

Abstract

Numerical simulation of the conjugate natural convection in closed square cavities with a heat-conducting element has been carried out. A two-dimensional closed cavity with square, triangular, and trapezoidal heaters, as well as in the presence of heat-conducting walls, has been considered as an area of research. The temperature inside and on the surface of the heater was considered to be constant and maximum, the temperature on the external side walls was considered to be constant and minimum. The lattice Boltzmann method as the main numerical solution method has been chosen. The influence of the thermal conductivity of the heat conducting walls and the material of the energy source, the shape of the energy source and the intensity of the flow in the cavity has been studied. As a result, thermohydrodynamic characteristics have been obtained.