A New Cooling Structure Design of Turbine Blade and Experiment Verification
A new cooling structure was designed for a turbine blade of an aeroengine.The cooling effect test piece was designed and tested under medium temperature and medium pressure,and the cooling effect was compared with that of the turbine blade with mature cooling structure.The results show that the average cooling effect of the new cooling structure can meet the cooling design requirement of the blade under the actual working condition.In the range of flow ratio from 0.02 to 0.046,the average cooling effect is higher than that of the mature cooling structure under the same flow ratio.At the engine design point,the average cooling effect is about 10.5%higher than the mature cooling structure,and the sizes of various cooling units meet the requirements of casting and machining,the design scheme is reasonable and feasible.The results can provide reference for the design of turbine blade cooling structure.
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