Development of a Propeller Afterbody Analysis with Contracting Slipstream 830743
A developmental study was performed of an analytical method to predict the aerodynamic behavior of propeller afterbodies in a contracting slipstream. An existing axisymmetric body panel code was used as the basis. The slipstream was modeled by a finite set of vortex rings lying on a deformable tube boundary. Relations were formulated giving the ring strength in terms of the propeller operating conditions.
An experimental program was conducted to investigate the accuracy of the method. The static pressure distribution of an axisymmetric afterbody was measured in the presence of a propeller slipstream. The results showed good agreement at high advance ratios, but increased in error as the advance ratio was reduced. The error was traced to losses in slipstream total pressure adjacent to the afterbody due to stall of the inboard section of the test propeller.
Citation: Sparks, S. and Miley, S., "Development of a Propeller Afterbody Analysis with Contracting Slipstream," SAE Technical Paper 830743, 1983, https://doi.org/10.4271/830743. Download Citation
Author(s):
S. P. Sparks, S. J. Miley
Affiliated:
Georgia Institute of Technology, Atlanta, GA, Texas A&M University, College Station, TX
Pages: 16
Event:
Business Aircraft Meeting and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Body panels
Propellers and rotors
Stall
Pressure
Aerodynamics
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