Research Article

Numerical Study of Entropy Generation due to Coupled Laminar and Turbulent Mixed Convection and Thermal Radiation in an Enclosure Filled with a Semitransparent Medium

Table 2

(a) Grid independency tests for laminar regime (Ra = 104) (with radiation). (b) Grid independency tests for turbulence RNG - model (Ra = 108) (with radiation).
(a)

Number of grids
Average Nusselt number for Ri = 0.10.7715160.7715160.771512
Average Nusselt number for Ri = 10.77150940.77150940.7715082
Average Nusselt number for Ri = 100.77150670.77150670.7715053

(b)

Number of grids (Ri = 0.1)
Average Nusselt number for Ri = 0.126.087827426.087826026.0878248
Number of grids (Ri = 1)
Average Nusselt number for Ri = 1
Number of grids (Ri = 10)
Average Nusselt number for Ri = 1026.04523226.04522626.045223