Влияние поверхностного излучения на тепловую конвекцию во вращающейся кубической полости

Abstract

An investigation of convective heat transfer under an effect of thermal radiation in a rotating cubic cavity has been carried out numerically. Vertical left wall is heated, vertical right wall is cooled, and other walls of the cavity are insulated. The cavity rotates at a constant angular velocity in counterclockwise direction relative to z-axis. The cavity is filled with a fluid satisfying the Boussinesq approximation. Fluid is Newtonian and incompressible and all physical parameters are not dependent on a temperature. All surfaces inside the cavity are reflectors and emitters of thermal radiation, while the medium is transparent to thermal radiation. The system of governing equations is written in dimensionless non-primitive variables and solved by the finite difference method. The effect of surface emissivity on fluid flow and heat transfer has been studied.