In severely cold and humid regions

ice often accumulates in the air intake systems of ground and marine gas turbines. Currently

research on this issue is still in its early stages in China and abroad. Based on the principles of field calculations

water droplet behavior

and ice accretion thermodynamics

a prediction method for ice accretion under complex structural and flow field conditions has been proposed. A model of the inlet component of a 2.5-stage scaled compressor is established to simulate the flow field distribution

water droplet collection characteristics

and ice accretion characteristics under varying conditions of median volume diameter (MVD)

liquid water content (LWC)

wind speed

and temperature. The results indicate almost no ice accretes on the bell mouth. In the guide vane area

ice is primarily found between 10% to 50% relative blade height

concentrated on the whole pressure surface and only the leading edge of the suction surface. These findings are valuable for advancing the theory of gas turbine inlet ice accretion and guiding the design of anti-icing systems.