Figure 3

Validation of the average Nusselt number with Pak and Cho correlation28 when \(\phi_{2}\) = 0.001, \(\omega\) = 0.01 m/s (a) \(\phi_{1}\) = 0.001 and (b) \(\phi_{1}\) = 0.05.

Validation of the average Nusselt number with Pak and Cho correlation28 when \(\phi_{2}\) = 0.001, \(\omega\) = 0.01 m/s (a) \(\phi_{1}\) = 0.001 and (b) \(\phi_{1}\) = 0.05.