Stator blades effect on thrust of an electric ducted propulsion fan

Abstract

Nowaday, the electric Ducted Propulsion Fan (eDPF) with high-thrust andhigh-efficiencyare researched and developed  for hybrid or electric aircraft, including electric vertical take-off and landing (eVTOL) aircraft. The stator blades not only serve struts connecting the fan casing with the center object containing the electric motor, but also play a role in helping to reduce the eddy airflow created by the fanblades. Therefore, the stator blades can help increase thrust, reduce noise and improve efficiency of the eDPF. The parameters such as chord length, thickness ratio, arc of blade profile and blade angle are changed and compared with VasyFan's experiment on a 570mm diameter eDPF. In fact, the stator improvements have shown a 6.09% increase in thrust.