Optimization of the Three-Dimensional Flow Path in the Scroll-Nozzle System of a Radial Inflow Turbine

[+] Author and Article Information
E. A. Baskharone

Garrett Turbine Engine Company, A Division of the Garrett Corporation, Phoenix, Ariz. 85010

J. Eng. Gas Turbines Power 106(2), 511-515 (Apr 01, 1984) (5 pages) doi:10.1115/1.3239600 History: Received December 27, 1982; Online October 15, 2009


A three-dimensional inviscid flow analysis in the combined scroll-nozzle system of a radial inflow turbine is presented. The coupling of the two turbine components leads to a geometrically complicated, multiply-connected flow domain. Nevertheless, this coupling accounts for the mutual effects of both elements on the three-dimensional flow pattern throughout the entire system. Compressibility effects are treated for an accurate prediction of the nozzle performance. Different geometrical configurations of both the scroll passage and the nozzle region are investigated for optimum performance. The results corresponding to a sample scroll-nozzle configuration are verified by experimental measurements.

Copyright © 1984 by ASME
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