Swallowing water capability experiment of one turbine-shaft overall aviation engine

Waterworks and special air intake path were designed to conduct swallowing water experiments for one aviation turbine-shaft engine under research,while big and small rings were used to spurt certain quantity of water into the engine.The experiments were conducted at swallowing water in the quantity of 2.5% and 3.5% of engine's intake air.The results show that,the designs of the experiment method and device are feasible;when symmetrically swallowing water not higher than 3.5% of engine's intake air,the temperature drop at each engine's section decreases from the inlet to the exit;the engine's performance degrades after swallowing water experiments.