Experimental Investigation on the Effect of Coolant Injection on Turbine Aerodynamic Characteristics.Part II: Effects of Injection from Rotor Casing with 30° Slanted Holes
Using a test turbine, the authors investigated the effects of coolant injection on turbine aerodynamic characteristics. In this paper, part II, the effects of the coolant injection from a rotor casing with 30° slanted holes are described. The discussed turbine efficiency introduced herein is based on torque, rotational speed and mass flow rate, and the radial and tangential distributions of total pressure and flow angles. It may be concluded that there are some reductions in total pressure losses and increases in outlet flow angles in the tip region caused by the coolant injection.
空冷タービンの空力特性に関する研究(II)動翼シュラウドリングからの吹出しの影響(吹出し角30°の場合)
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