0

Full Content is available to subscribers

Subscribe/Learn More  >

Aerodynamic Optimisation of an Aeroengine Bypass Duct OGV-Pylon Configuration

[+] Author Affiliations
Thomas Tschirner, Michael Pfitzner, Rüdiger Merz

Rolls Royce Deutschland plc & Company KG, Dahlewitz, Germany

Paper No. GT2002-30493, pp. 879-888; 10 pages
doi:10.1115/GT2002-30493
From:
  • ASME Turbo Expo 2002: Power for Land, Sea, and Air
  • Volume 5: Turbo Expo 2002, Parts A and B
  • Amsterdam, The Netherlands, June 3–6, 2002
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-3610-X | eISBN: 0-7918-3601-0
  • Copyright © 2002 by ASME

abstract

In a core-mounted high-bypass aero engine the fairing around the mount arm carrying the engine weight through the bypass duct has to be designed such that the aerodynamic losses induced by this thick structure are minimized to avoid an increase of specific fuel consumption. On the other hand, the overall engine length and weight needs to be kept to a minimum so that there is no negative impact on airplane payload. This paper describes the development of an automated 2-D CFD analysis procedure for fast investigation of aerodynamic losses generated in the fan outlet guide vanes (OGV’s) and the bypass duct by the introduction of a core mount arm. Design rules for the positioning and aerodynamic form of the mount arm fairing are presented. Different configurations are compared with respect to the pressure loss induced in the bypass duct and the additional contribution to fan back pressure. A combination of well adapted aerodynamic mount arm fairing and re-staggering of the struts is presented, which only marginally increases the overall total pressure loss in the bypass duct and has negligible effect on the fan backpressure distribution.

Copyright © 2002 by ASME
Topics: Optimization , Ducts

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In