In Flight Heat Transfer Measurements on an Aero-Engine Nacelle FREE

[+] Author Affiliations
Nicholas W. Bown, Terrence M. Cain, Terence V. Jones

University of Oxford, Oxford, UK

Philip P. Shipley, Brian Barry

Rolls-Royce plc, Derby, UK

Paper No. 94-GT-244, pp. V004T09A039; 6 pages
  • ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration
  • The Hague, Netherlands, June 13–16, 1994
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7886-6
  • Copyright © 1994 by ASME


This paper describes heat transfer measurements on the external surface of a Natural Laminar Flow (NLF) nacelle. The measurement technique employed temperature sensitive liquid crystals and platinum resistance thermometers (PRTs) to measure the surface temperature over an electrically heated pad. This gave an immediate visual indication of the transition location. The heat transfer distribution along the length of the pad has been determined and is compared with a simple theoretical model. Results are presented for the cruise condition of Mach 0.56 at an altitude of 6400m.

Copyright © 1994 by ASME
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