Numerical simulation of natural convection in a square enclosure filled with nanofluid using the two-phase Lattice Boltzmann method

Table 2 Comparison of the mean Nusselt numbers with different grids ( Ra = 1 × 10 ⁵ , Pr = 0.7)

Physical properties	128 × 128	192 × 192	256 × 256	320 × 320	Literature[30]
Nu _avg	4.5466	4.5251	4.5220	4.5218	4.5216