Doroshenko K. Gas dynamic effect on the flow in fan of turbofan engine

This thesis is dedicated to improvement of turbofan engine fuel efficiency by decreasing of on acoustic emissions by gas dynamic effect on the flow in fan of turbofan engine. Improved methods of fan parameters determination that is based on the accounting of acoustic emissions energy losses. Flow parameters dependences upon the intensity of gas dynamic control of aerodynamic vortexes were obtained as a result of numerical modeling of spacious flow in the fan.Recommendation were developed to determine the effect of the control of aerodynamic vortexes on the fuel efficiency of turbofan engine.Application of gas dynamic effect on the flow parameters in the fan can improve fuel efficiency of turbofan engine. Rational gas dynamic influence on the flow in the fan allows to increase fuel economy by 0,605%.