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Turbomachinery Waves

Published online by Cambridge University Press:  07 June 2016

J H Horlock  and
H Daneshyar
J H Horlock
Affiliation:
University of Salford
H Daneshyar
Affiliation:
University of Cambridge
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Summary

Two methods of analysis are developed for the unsteady wave flow through axial turbomachinery of high hub-tip ratio. In the first method, the machine is supposed to consist of an infinite number of small stages. Differential equations for the instantaneous values of flow properties are derived which may be solved directly or by the method of characteristics. Conditions for wave propagation are discussed. Secondly, a model is used in which actuator discs replace the stages and the flow is axial between the stages. This is a good approximation in many compressors in which the leaving angle from the stators is small. Again the method of characteristics may then be used for solving the equations of unsteady flow between the discs.

Type
Research Article
Information
Aeronautical Quarterly , Volume 28 , Issue 1 , February 1977 , pp. 1 - 14
Copyright
Copyright © Royal Aeronautical Society. 1977

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References

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