“…Backed up by the experimental results, their virtual Schlieren visualizations in a CFD analysis clearly demonstrated that the stripe variations of heat flux correspond to those flow features associated with the over-tip shock system. Most recently, the over tip choking and shock structure were reported for a shroudless flat tip (Zhang et al [26]), and even a modern winglet tip design (O'Dowd et al [27]). Similar results have also been reported by Shyam et al [28,29] in their numerical study for a highly The present computational analysis using an extensively developed CFD code which has been recently validated for transonic blade tip configurations [25], [26], [31] should shed some light on this primary issue.…”