Влияние размеров трапециевидного локального источника энергии на эволюцию ламинарных тепловых факелов в замкнутых контурах

Abstract

In this study, numerical simulation of unsteady laminar natural convection in a cubical cavity having discrete heat source of a trapezoidal shape has been carried out. Governing equations describing fluid flow and heat and mass transfer within the considered area have been represented using the dimensionless vector potential functions, vorticity vector and temperature. Distributions of velocity and temperature fields inside the domain of interest have been obtained. All calculations have been conducted in a wide range of Rayleigh number and heater size.