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

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

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