An initial cleaning project was presented

including cleaning types

frequency and its design parameters for a turbofan engine.Using flow field simulation technique

the initial cleaning project was validated and its designing parameters were optimized.All these works show that:detergents injection will not affect this engine fan's stability at detergents-to-air ratios less than 3% by mass;the larger nozzle spraying angle means better droplets cover of the fan in the radial direction at equivalent other system parameters;flow field simulation of compressor can not confirm the effectiveness of the nozzle fluid pressure and detergents-to-air ratios to cleaning efficiency.