Data driven engineering methodology do not follow first principles, instead it establishes governing rules from design patterns, featured in design data, vast amount of data processed, distributed in cluster, using machine learning algorithm, on ANN architecture. Through implementing these innovative functions, the new propulsion solutions could combine the specialties of turbojet and turbofan, including the high specific thrust in supersonic penetration and low specific consumption in subsonic cruise. Impressively, these specialties were supposed to be contradictory and could not simultaneously be achieved on the conventional aircraft.
Rule based modelling on first principles, will default to constraints of single point design !
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