A Moore-Greitzer Model for Ducted Fans in Ground Effect
Publish place: Journal of Applied Fluid Mechanics، Vol: 13، Issue: 2
Publish Year: 1398
Type: Journal paper
Language: English
View: 255
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Document National Code:
JR_JAFM-13-2_025
Index date: 5 January 2022
A Moore-Greitzer Model for Ducted Fans in Ground Effect abstract
Ducted fans are widely used in unmanned aerial vehicles due to their high propulsive efficiency and safety. The aerodynamics are complex within the vicinity of the ground, including take-off, landing and hovering. In the present study, the aerodynamic stability of the ducted fan was studied with a modified Moore-Greitzer model to estimate and analyse the stability in ground effect. The model was validated and compared with three-dimensional unsteady simulations. The results indicated that the rotating stall occurred for the ducted fan in ground effect. The model results can be used to guide the design and control of the vehicles, to ensure the stability and safety of both the ducted fan and vehicles.
A Moore-Greitzer Model for Ducted Fans in Ground Effect Keywords:
A Moore-Greitzer Model for Ducted Fans in Ground Effect authors
Y. Jin
State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, ۱۰۰۰۸۴, China
Y. Fu
State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, ۱۰۰۰۸۴, China
Y. Qian
State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, ۱۰۰۰۸۴, China
Y. Zhang
State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, ۱۰۰۰۸۴, China