MODELLING METHOD FOR AIRCRAFT ENGINE FAN ASSEMBLY Russian patent published in 2023 - IPC G06F30/17 F01D5/14 

FIELD: aviation.

SUBSTANCE: invention relates to the technical field of aircraft engine design. The fan assembly of an aircraft engine contains a hub, a casing and a plurality of blades located between the hub and the casing, and the non-axisymmetric curved surfaces of the end wall of the hub in the cascade channel are designed by: determining, using the method of designing a flow path for a double flow path of the blade end zone, the initial radius of the axisymmetric curve of the hub and the radius of the lowest point of the recessed curve of the non-axisymmetric curved surfaces of the hub; and designing non-axisymmetric curved surfaces of the end wall of the hub in the cascade channel in accordance with the initial radius of the axisymmetric curve and the radius of the lowest point of the recessed curve.

EFFECT: creation of a fan assembly of an aircraft engine, in which the hub is of shape that improves the smoothness of the air flow.

8 cl, 7 dwg