Exploring the Effects of Installation Geometry in High-Lift Propeller SystemsA high-lift propeller system is a distributed electric propulsion technology which dedicates an array of wing-mounted tractor propellers to actively augment wing lift during takeoff and landing. This paper describes the results of a wind tunnel experiment dedicated to investigating the effects of high-lift propeller installation geometry on lift generation. Variables investigated include propeller height, offset, and inclination. Results show that propeller height is the most critical variable and that the height for maximum lift depends highly on the angle of attack and flap deflection. In addition, a relationship between optimal propeller height and the wing’s unblown lift coefficient is discovered.
Document ID
20190000432
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Fei, Xiaofan (NASA Langley Research Center Hampton, VA, United States)
Patterson, Michael D. (NASA Langley Research Center Hampton, VA, United States)
German, Brian J. (Georgia Inst. of Technology Atlanta, GA, United States)
Date Acquired
February 5, 2019
Publication Date
January 8, 2018
Subject Category
Aeronautics (General)
Report/Patent Number
NF1676L-27395
Meeting Information
Meeting: AIAA SciTech 2018
Location: Kissimmee, FL
Country: United States
Start Date: January 8, 2018
End Date: January 12, 2018
Sponsors: American Inst. of Aeronautics and Astronautics