The application of similarity theory for heat transfer investigation in rotational internal cooling channel

Result shows that the conventional application of similarity theory can predict heat transfer well for complete similar model (Model 2), but with a large deviation for dissimilar model (Mode 3). Given the same Re and Ro, the smaller Buo in Model 3 causes over 17% deviation heat transfer result. Then, the two revised methods concerning the effect of rotational radius ratio and wall temperature ratio are detailedly discussed, and both of them show less than 3% deviation in heat transfer distribution results. The detailed revised steps are also provided for both methods.