Experimental Investigation of Leading Edge Cooling of Turbine Blades by Means of Upstream Injection

Abstract : The experimental investigation of leading edge cooling by upstream injection with the results obtained are described in this report. The results indicate that this method is very effective for cooling the leading edge especially when the stagnation pressure of the injected air is larger than the stagnation pressure of the free stream air. It was also determined that the method was insensitive to small variations of angle of attack. (Author)