High-speed boundary layer transition criterion calibration method and system based on flight test data

The invention discloses a high-speed boundary layer transition criterion calibration method based on flight test data. The method comprises the following steps: S1, acquiring a basic flow layer flow field of an aircraft by adopting a numerical simulation method; s2, carrying out boundary layer flow stability analysis on the aircraft by adopting a linear stability theory; s3, dividing the boundary layer of the aircraft into a flow direction instability area and a transverse flow instability area according to the boundary layer flow stability analysis result in the step S2; s4, adopting an eN method to obtain the maximum N value envelope of the flow direction instability area and the transverse flow instability area; s5, according to the measurement result of transition of the boundary layer of the aircraft, calibrating the transition N values of the flow direction instability and the transverse flow instability, and obtaining a flow direction instability transition Ns value and a transverse flow instability tr