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RESEARCH PAPERS

The Design and Testing of a Radial Flow Turbine for Aerodynamic Research

[+] Author and Article Information
I. Huntsman, H. P. Hodson

Whittle Laboratory, Cambridge University, Cambridge, United Kingdom

S. H. Hill

Rolls-Royce plc, Leavesden, United Kingdom

J. Turbomach 114(2), 411-418 (Apr 01, 1992) (8 pages) doi:10.1115/1.2929159 History: Received March 04, 1991; Online June 09, 2008

Abstract

This paper describes the design of a high-speed radial inflow turbine for use as part of a gas generator, and the design of a large-scale (1.2 m tip diameter) low-speed model of the high-speed turbine. Streamline curvature throughflow, two-dimensional blade-to-blade, and fully three-dimensional inviscid and viscous calculation methods have been used extensively in the analysis of the designs. The use of appropriate scaling parameters and their impact on turbine performance is discussed. A simple model shows, for example, how to model the blade lean in the inducer, which serves to balance the effect of meridional curvature at inlet to the rotor and can be used to unload the rotor tip. A brief description of the low-speed experimental facility is followed by a presentation and discussion of experimental results. These include surface flow visualization patterns on both the rotor and stator blades and blade row exit traverses.

Copyright © 1992 by The American Society of Mechanical Engineers
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