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Development of secondary flows in the stator of a model turbine

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Abstract

Measurements are described which show the development of the secondary flows through the stator blades in a single stage model turbine. The build of the turbine is intended to simulate a stage in the HP cylinder of a steam turbine and three different thicknesses of inlet boundary layers are studied. Flow visualisation of the inlet boundary fluid shows the development of the horseshoe vortex round the blade leading edge. Probe measurements upstream and downstream of the trailing edge plane show how the passage vortices are developed and how they influence the distribution of losses across the annulus.

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Authors and Affiliations

  1. Central Electricity Generating Board, Marchwood Engineering Laboratories, Southampton, Great Britain

    P. H. Richards & C. G. Johnson

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  1. P. H. Richards
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  2. C. G. Johnson
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Richards, P.H., Johnson, C.G. Development of secondary flows in the stator of a model turbine. Experiments in Fluids 6, 2–10 (1988). https://doi.org/10.1007/BF00226128

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  • DOI: https://doi.org/10.1007/BF00226128

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