Comparison of the Finite Volume and Lattice Boltzmann Methods for Solving Natural Convection Heat Transfer Problems inside Cavities and Enclosures

Table 2

Grid independence tests (LBM).

Number of grids	10000	32400	48400	67600	84100	Experimental value  [32]
Maximum X-velocity	0.0004	0.0008	0.0010	0.0010	0.00103	—
Dimensionless temperature at the middle of the cavity	0.430	0.449	0.463	0.471	0.475	0.51