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Aerospace 2018, 5(3), 79;

Computational Study of Propeller–Wing Aerodynamic Interaction

High Performance Computing Research Center, U.S. Air Force Academy, Air Force Academy, CO 80840, USA
U.S. Army Natick Soldier Research, Development & Engineering Center, Natick, MA 01760, USA
Author to whom correspondence should be addressed.
Received: 12 April 2018 / Revised: 9 July 2018 / Accepted: 18 July 2018 / Published: 25 July 2018
(This article belongs to the Special Issue Computational Aerodynamic Modeling of Aerospace Vehicles)
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Kestrel simulation tools are used to investigate the mutual interference between the propeller and wing of C130J aircraft. Only the wing, nacelles, and propeller geometries are considered. The propulsion system modelled is a Dowty six-bladed R391 propeller mounted at inboard or outboard wing sections in single and dual propeller configurations. The results show that installed propeller configurations have asymmetric blade loadings such that downward-moving blades produce more thrust force than those moving upward. In addition, the influence of installed propeller flow-fields on the wing aerodynamic (pressure coefficient and local lift distribution) are investigated. The installed propeller configuration data are compared with the non-installed case, and the results show that propeller effects will improve the wing’s lift distribution. The increase in lift behind the propeller is different at the left and right sides of the propeller. In addition, the propeller helps to delay the wing flow separation behind it for tested conditions of this work. Finally, the results show the capability of Kestrel simulation tools for modeling and design of propellers and investigates their effects over aircraft during conceptual design in which no experimental or flight test data are available yet. This will lead to reducing the number of tests required later. View Full-Text
Keywords: wing–propeller aerodynamic interaction; p-factor; installed propeller; overset grid approach wing–propeller aerodynamic interaction; p-factor; installed propeller; overset grid approach

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Aref, P.; Ghoreyshi, M.; Jirasek, A.; Satchell, M.J.; Bergeron, K. Computational Study of Propeller–Wing Aerodynamic Interaction. Aerospace 2018, 5, 79.

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