In order to study the influence of boundary layer ingestion on airframe aerodynamic performance and propulsion efficiency of the distributed propulsion system with trailing edge jet

a two-dimensional airfoil with trailing edge jet and boundary layer ingestion

modeling the airframe

was studied numerically to discuss the influence of incoming angle of attack

jet angle and boundary layer ingestion on aerodynamic performance and propulsion efficiency. Some suggestions on design and application of the distributed propulsion system were carried out. Results show that trailing edge jet and boundary layer ingestion are able to improve the lift-drag ratio at medium/small incoming angle of attack (2° and 0.6°). Propulsion efficiency is able to reach the level over 80%. However

drag of airfoil rises significantly at high incoming angle of attack (4°) with jet angle increasing

resulting in adverse impact on both aerodynamic performance and propulsion efficiency.