Certain type of hybrid afterburner turbofan engine is studied to research the influence of atmospheric temperature on working capacity of afterburner. First, the temperature characteristics above the airport of the area is obtained based on the flight height envelope of aircraft and in combination with the trial flight temperature data of certain airport over the previous years. Second, in combination with the characteristics of research object and by reference of working capacity model of afterburner based on empirical formula, the trial flight data that the engine switches on in afterburner with the same test point and different temperatures, is adopted to research the change of the working capacity of afterburner at different temperatures. The research results indicate that: The temperature at the altitude of more than 13km basically keeps unchanged, so, the influence of temperature may not be considered; With the reduction of external temperature at the altitude of less than 12km, the light-on and stable working capacity of afterburner tend to decline; Therefore, in the trial flight process, the influence of temperature in different seasons on test results shall be considered at the afterburner light-on boundary of less than 12km.

Gao Shasha. Research on the Influence of Atmospheric Temperature on Working Capacity of Afterburner. International Journal of Frontiers in Engineering Technology (2023), Vol. 5, Issue 7: 7-12. https://doi.org/10.25236/IJFET.2023.050702.

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