Erosion wear patterns of turboshaft engine compressor under different radial inlet distortion conditions

Particle velocimetry setup was used to accurately measure the velocity of SiO2 particles. Subsequently, a titanium alloy erosion wear setup enabled the acquisition of data on erosion rate and erosion angle. Leveraging this data, the Tabakoff erosion wear model for compressors was established. Particle motion characteristics, blade erosion wear areas, and erosion rates were meticulously analyzed under no, tip, and hub distortions. The findings reveal that tip distortion has the most severe impact on compressor erosion wear, followed by no distortion, while hub distortion leads to the least erosion wear. In the rotor and stator blades, the maximum erosion rate increased by 51.6 % and 37.3 % under tip distortion and by 46.2 % and 28.6 % under hub distortion compared to no distortion.