Lattice Boltzmann Simulation of Natural Convection in an Annulus between a Hexagonal Cylinder and a Square Enclosure

Table 1

Validation in terms of and for different values of and .

(a)

		Moukalled and Acharya [25]	Ding et al. [13]	Present study
0.1		2.071	2.061	2.081
		3.825	3.752	3.750
		6.107	6.071	6.083
0.2		3.331	3.219	3.224
		5.080	4.896	4.874
		9.374	8.864	8.892
0.3		5.826	5.350	5.366
		6.212	6.202	6.186
		11.620	11.91	11.861

(b)

		Moukalled and Acharya [25]			Present study
		0.1	0.2	0.3	0.1	0.2	0.3
		2.44	1.43	0.7	2.42	1.46	0.68
		14.3	11.8	7.19	14.42	11.93	7.22
		35.7	33.9	30	35.66	34.02	30.21