Publications

Loss in Axial Compressor Bleed Systems

A new method for characterising bleed system loss is introduced, using research compressor test results as a demonstration case. A loss coefficient is defined for a control volume including only flow passing through the bleed system. The coefficient takes a measured value of 95% bleed system inlet dynamic head, and is shown to be a weak function of compressor operating point and bleed rate, varying by +/-2.2% over all tested conditions. This loss coefficient is the correct non-dimensional metric for quantifying and comparing bleed system performance.

Authors:

S.D. Grimshaw, J. Brind, G. Pullan, R. Seki

Publication:

Proceedings of ASME Turbo Expo 2019

Bleed Induced Distortion in Axial Compressors

Authors:

S. D. Grimshaw, G. Pullan, T. Walker

Publication:

Journal of Turbomachinery (2015) Vol. 137, Issue 9, Article 101009

DOI:

10.1115/1.4030809

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Modeling Nonuniform Bleed in Axial Compressors

Authors:

S.D. Grimshaw, G. Pullan, T.P. Hynes

Publication:

Journal of Turbomachinery (2016) Vol. 138, Issue 9, Article 091010

DOI:

10.1115/1.4032845

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