Influence of Thermal Radiation on Natural Convection in a Square Enclosure

Numerical investigations are carried out to analyze the pre-eminence on after-effects characterized by thermal radiation coupled with natural convection in a two-dimensional square enclosure. The square enclosure has an adiabatic top and bottom wall with side walls being administered at consistent temperature with different values. The mathematical equations of this present research have been solved by applying a finite element strategy. A broad in content parametric research investigation is executed to assess the confrontation of Rayleigh number (Ra) along with radiation criterion (Rd) on the fluid-transport eventuation. The numerical simulations demonstrate that Nusselt number (Nu) is an augmenting function of Ra and Rd. Consequential changes in streamlines along with isothermal contours for high Ra are realized. The present numerical investigations are applicable to solar collecting design devices, fire modelling in compartment, etc.