Windmilling characteristics of centrifugal-flow turbojets

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A new nondimensional method for predicting the windmilling performance of centrifugal -flow turbojet engines in flight has been developed. The method incorporates loss correlations to estimate the performance of major engine components. Given basic engine geometry, flight Mach number, and ambient conditions, this method predicts transient and steady-state windmilling performance. Thus, this method can be used during the preliminary design stage when detailed hardware geometry and component performance data are not yet available. A nondimensional time parameter is newly defined, and using this parameter, the transient performance of different types of turbojets (e.g. centrifugal vs. axial) is compared. In addition, the predictions' sensitivity to loss correlations, slip factors, and inlet ambient temperatures are analyzed.
Publisher
KOREAN SOC MECHANICAL ENGINEERS
Issue Date
2004
Language
English
Article Type
Article
Citation

KSME INTERNATIONAL JOURNAL, v.18, no.11, pp.2021 - 2031

ISSN
1226-4865
URI
http://hdl.handle.net/10203/80689
Appears in Collection
RIMS Journal Papers
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