... to degrade under off-design conditions due to a lack of required momentum [ 8 , 9 ]. Heinrich et al. [ 10 ] reported that the boundary layer at the hub and tip leakage vortices at the tip cause more losses in their respective regions than in the mid-span region. Wilkosz et al. [ 11 ] observed that the static...

...Amit Kumar; Hitesh Chhugani; Shubhali More; A. M. Pradeep Tandem blade is an interesting concept that promises a higher total pressure rise per stage. Owing to two separate tip leakage vortices and their interaction, losses are likely to increase particularly near the tip region. Although rotors...