Enhanced Internal Heat Transfer on the Tip-Wall in a Rectangular Two-Pass Channel (AR=1:2) by Pin-Fin Arrays
To improve gas turbine performance, the operating temperature has been increased continuously. However, the heat transferred to the turbine blade is substantially increased as the turbine inlet temperature is increased. Cooling methods are therefore much needed for the turbine blades to ensure a long durability and safe operation. The blade tip region is exposed to the hot gas flows and is difficu