Transient performance for high‐bypass ratio turbofan models

J. Yin (J. Yin is based at the School of Mechanical Engineering, Cranfield University, UK.)
R. Hales (R. Hales is based at the School of Mechanical Engineering, Cranfield University, UK.)
P. Pilidis (P. Pilidis is based at the School of Mechanical Engineering, Cranfield University, UK.)
B. Curnock (B. Curnock is with Rolls‐Royce plc, Bristol, UK.)
R. Meads (R. Meads is with Rolls‐Royce plc, Bristol, UK.)

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Publication date: 1 December 2000

Abstract

A two‐dimensional high‐bypass ratio turbofan performance model was developed in order to predict accurately gas turbine transient performance. In the present model, the fan of high bypass engines has strong radial profiles of all thermodynamic variables. It is common to average these profiles so that the fan can be represented by one or two one‐dimensional characteristics. The present paper describes how the radial profiles can be used to make an estimation of turbofan transient performance. The results are somewhat different to those produced using two one‐dimensional compressor performance maps.

Keywords

Citation

Yin, J., Hales, R., Pilidis, P., Curnock, B. and Meads, R. (2000), "Transient performance for high‐bypass ratio turbofan models", Aircraft Engineering and Aerospace Technology, Vol. 72 No. 6, pp. 518-524. https://doi.org/10.1108/00022660010357477

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MCB UP Ltd

Copyright © 2000, MCB UP Limited

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