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 1

(a) Comparison of the average Nusselt number with Sharif [14] work. (b) Comparison of the average Nusselt number with Xamán et al. [10] work.

(a)

Ri, surface	Nu [14]	Nu (present study)
1, cold wall	3.27	3.273
1, hot wall	3.58	3.588

(b)

Ra	Nu with radiation [10]	Nu without radiation [10]	Nu with radiation (present study)	Nu without radiation (present study)
10^4	2.55	1.83	2.48	1.77
10^12	972.51	591.27	969.96	589.02