Research Article

Transient Natural Convection in Porous Square Cavity Heated and Cooled on Adjacent Walls

Table 1

Comparison of the average Nusselt number, , with results from [23] for heated and cold walls for .

Reference Mesh size

Revnic et al. [23] 8.2636 8.2240
9.2162 9.2008
10.1319 10.1247
Richardson extrapolation 10.4371 10.4326
Present results 8.5553 8.2786
9.3885 9.2271
10.2297 10.1383