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Parametric Design Study on Aerodynamic Characteristics of Variable Pitot Inlets for Transonic and Supersonic Civil Aviation

  • This paper reveals the influence of selected geometric parameters on the aerodynamic performance of circular variable aero engine inlets in transonic and supersonic civil aviation. The trade-off in inlet design and aerodynamic evaluation parameters are presented. The approach to investigate the dependencies between the aerodynamic and geometric parameters at different flight conditions by means of a parametric design study is introduced. The dependencies of inlet drag and efficiency from geometric parameters at flight speeds of Mach 0.95 up to Mach 1.6 are identified. Although entailing additional weight, the inlet length represents the parameter with the highest potential for drag reduction by up to 50% in the selected design space. Ideal geometries for variable pitot inlets are determined. After considering weight, their potential range benefit nearly disappears for subsonic applications, but remains above 20% for supersonic flight at Mach 1.6.

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Metadaten
Author: Stefan KazulaORCiD, Mark Wöllner, David Grasselt, Klaus HöschlerGND
DOI:https://doi.org/10.1051/matecconf/201930402017
ISSN:2261-236X
Title of the source (English):MATEC Web of Conferences : Proceedings of the 9th EASN International Conference on Innovation in Aviation & Space
Document Type:Conference publication not peer-reviewed
Language:English
Year of publication:2019
Volume/Year:304
Number of pages:8
Article number:02017
Faculty/Chair:Fakultät 3 Maschinenbau, Elektro- und Energiesysteme / FG Flug-Triebwerksdesign
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