The gas turbine core-engine derivative model for turbofan serialization
which focused on thermo-cycle approach
was established based on components and engine matching between core-engine and low-pressure system.The model took into account high-low system interaction
core turbine operation and inner-outer duct compatibility comprehensively
and then it was utilized to analyze derived turbofans' cycle and performance.The results show that the coupled low-high systems' constraints influence turbofan's performance and cycle parameters
providing engineering reference and design criteria for core-derived turbofan's matching and simulation.