C.Jiang et al.Int nd Mass Tranfer91(2015)98-109 verage Nusselt numbers with [45]at various values of Br. 25 Continuity equation: 贺+-0 Momentum equation △T 袋》贵货-源品 Present results Relative error +兰快+ (+制 0 02 Yang et al. Present work with 35](left:temperature field and right:velocity field) Continuity equation: @u @x þ @v @y ¼ 0 ð10Þ Momentum equation: qf e2 u @u @x þ v @u @y  ¼ @p @x lf j u qf 1:75 ffiffiffiffiffiffiffiffiffi 150 p ðu2 þ v2Þ 1=2 ffiffiffi j p u e3=2 þ lf e @2 u @x2 þ @2 u @y2 ! 1 þ 1 T0b  v0bðTf T0Þ 2lm @ðb2 Þ @x ð11Þ Table 1 Comparison of the average Nusselt number Num for different grid resolution at e = 0.5, Pr = 0.71, H = 10, K = 10, cRa = 1  106 , Da = 1  103 under non-gravita￾tional condition. Grid dimension Num 30  30 2.0635 40  40 2.0519 50  50 2.0478 60  60 2.0460 70  70 2.0454 Table 2 Comparison of present results with [35]. DT Num Yang et al. [35] Present results Relative error/% 1 1.003 1.003 0 10 1.214 1.244 2.47 50 2.120 2.166 2.17 Fig. 2. The comparison of present results with [35] (left: temperature field and right: velocity field). Table 3 Comparison of average Nusselt numbers with [45] at various values of Br. Br Num Song et al. [45] Present results 0.0 T 4.520 4.525 0.5 T 4.506 4.524 1.5 T 4.352 4.360 2.5 T 3.898 3.923 C. Jiang et al. / International Journal of Heat and Mass Transfer 91 (2015) 98–109 101