Aerodynamic Analysis of a Low-Speed Tandem-Channel Wing for eVTOL Aircraft Considering Propeller–Wing Interaction

Fixed-wing aircraft with vertical takeoff and landing capabilities need a lower speed higher lift during transition. To meet these needs, tandem-channel wing layout has been developed, including FLR (front than rear wing) configuration FUR upper configuration, which differ in height differences between the front wings. Numerical simulations have performed to investigate aerodynamic characteristics of two configurations. The results show that significant increase coefficient occurs when propeller rotational angle attack increase. at small increases by more 50% high speed, stall 10 degrees. For downwash effect impacts wing, decreasing local delaying airflow separation on top surface. up surface is induced wake flow but makes static instability.