Heat transfer performance in a rotating two-inlet cooling wedge-shaped channel with lateral inflow holes

The results show that single lateral coolant inflow significantly improves heat transfer of channel top-half at stationary, but brings positive enhanced effect on bottom-half regions in rotating cases. When MR increases over 0.5, the lateral coolant begins to present positive effect on channel bottom-half. A critical MR of 0.3 is observed at top-half regions for the least stream-wise heat transfer difference. For both heat transfer enhancement and uniformity consideration, the MRs from 0.3 to 0.7 are better considered for two-inlet cooling schemes, while the optimal condition is around 0.45. Two-inlet cooling scheme monotonously improves rotational surface averaged heat transfer as MR increases. Due to the rotational effects and MR effects on high-radius regions are very limited, the trends of surface averaged values are mainly determined by low-radius region.