Optimization of intermediate case based on sand ingestion capability improvement of the aero-engine
During the sand ingestion test of the aero-engine,sand particles enter the core engine,causing damage to the compressor and turbine components,and thus worsening the engine's performance and reliability.Reducing the sand particles that enter the core of the aero-engine is an effective method to improve the sand ingestion capability.Taking the intermediate case of a turbofan engine as the research object,a two-phase flow simulation of the fan and intermediate case was carried out by using CFX software.Then the splitter ring of the intermediate case was optimized.The simulation results show that the optimized splitter ring can enhance the ability to separate sand particles and reduce the amount of sand entering the core engine,while the bypass ratio and loss remian almost unchanged.
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