Numerical Investigations on Low-Speed Aerodynamic Characteristics of Generic Unmanned Combat Aerial Vehicle Configurations

What is it about?

At low speeds, the leading-edge sweep angle influences the flight performance of swept wing UCAVs. The present work investigates the flowfield and low-speed aerodynamic characteristics of the generic UCAV models with constant and non-constant leading-edge sweep for a wide range of angles of attack. It was demonstrated that the lift and drag characteristics of the UCAV are sensitive to the leading-edge sweep angle, and a non-constant leading-edge sweep angle variant exhibited delayed stall and enhanced aerodynamic performance.

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