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Some unsteady flow phenomena downstream of an axial compressor stage.

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Lockhart, Robert Craig (1973) Some unsteady flow phenomena downstream of an axial compressor stage. Unspecified thesis, University of Tasmania.

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Abstract

A detailed investigation of some unsteady flow phenomena occurring
downstream of the rotor row in a single-stage, axial flow compressor,
having three blade rows is described. Measurements of both unsteady ,
and mean flow properties in the vicinity of the stator row are
presented. Experimental mean velocity distributions are compared
with values from potential flow calculations and excellent agreement
is obtained in areas outside viscous flow regions.
A quasi-steady model based on the interaction of wakes from the
inlet guide vane and rotor rows is used to explain a circumferential
variation observed in the unsteady flow; this variation originates
downstream of the rotor and continues undisturbed through the stator
row. Specifically, this variation occurs in the decay of the rotor
wake velocity defect and there is an associated circumferential
variation in the apparent turbulence level and mean velocity downstream of the rotor.
General unsteady flow phenomena occurring in the vicinity of
the stator blades are examined with particular reference to the
leading and trailing edge regions. Other work in the field of
unsteady flow in axial turbomachinery is discussed.

Item Type: Thesis (Unspecified)
Keywords: Axial flow compressors
Copyright Holders: The Author
Copyright Information:

Copyright 1073 the Author - The University is continuing to endeavour to trace the copyright
owner(s) and in the meantime this item has been reproduced here in good faith. We
would be pleased to hear from the copyright owner(s).

Additional Information:

Thesis (M.Eng. Sc.) -- University of Tasmania, 1974. Bibliography: l. 104-107

Date Deposited: 19 Dec 2014 02:23
Last Modified: 17 Jul 2017 06:43
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