Windmilling Characteristics of Centrifugal-Flow Turbojets

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 con...

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Bibliographic Details
Published inJournal of mechanical science and technology pp. 2021 - 2031
Main Authors Yoo Il Su, Song Seung Jin, Lim Jin Shik
Format Journal Article
LanguageKorean
Published 대한기계학회 01.11.2004
Subjects
기계공학
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Summary: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. KCI Citation Count: 0
Bibliography:G704-000058.2004.18.11.002
ISSN:1738-494X
1976-3824