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Comparison of conventional and compression pylon designs for an underwing nacelle

Devine, R. and Cooper, Richard K. and Gault, Richard and Watterson, J. K. and Benard, Emmanuel Comparison of conventional and compression pylon designs for an underwing nacelle. (2009) Journal of Aircraft, vol. 46 (n° 1). pp. 325-328. ISSN 0021-8669

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Official URL: http://dx.doi.org/10.2514/1.34967

Abstract

This paper addresses one of the key components required to produce an environmentally friendly aircraft by reducing drag (and hence fuel consumption) through improved aerodynamic integration of the wing, pylon, and nacelle. The results of a computational investigation comparing the aerodynamic performance of a compression pylon design to a DLR F6 based conventional pylon design are presented in this paper. As with other computational predictions, the total lift and total drag were overpredicted. The change in drag between the wing body and the wing-body nacelle-pylon configurations was underpredicted by 14% at CL = 0.5. This validated CFD method was then used to investigate a compression pylon design. The results showed that a compression pylon produces an increase in lift and a reduction in drag. At zero degree angle of attack the total drag coefficient was reduced by at least 0.0006. The effect of the pylon is primarily inboard of the wing.

Item Type:Article
Additional Information:Thanks to AIAA editor. The definitive version is available http://www.aiaa.org/ Times Cited: 0, AIAA 4th Aviation Technology, Integration and Operations Forum (ATIO) 20-22 Sept 2004, Chicago, USA
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Other partners > Queen's University Belfast (UNITED KINGDOM)
Other partners > University of Glasgow (UNITED KINGDOM)
Laboratory name:
Statistics:download
Deposited By:Emmanuel Benard

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