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. 2020 Nov 25;6(11):e05568. doi: 10.1016/j.heliyon.2020.e05568

Table 3.

Code validation.

Ra Mean Nusselt number for hot inner cylinder (air, Pr = 0.7)
Present study Kim et al. [66] Error % Moukalled [67] Error %
104 3.3874 3.4140 -0.7830 3.331 1.6672
105 5.1643 5.1385 0.4998 5.080 1.6326
106 9.3554 9.3900 -0.3691 9.373 -0.1981
107 15.7012 15.6650 0.2309 15.790 -0.5651