Experimental Study of the Three-Dimensional Flow Field in an Annular Turbine Nozzle Guidevane

[+] Author and Article Information
C. H. Sieverding, W. Van Hove, E. Boletis

von Karman Institute for Fluid Dynamics, B-1640 Rhode Saint Genese, Belgium

J. Eng. Gas Turbines Power 106(2), 437-444 (Apr 01, 1984) (8 pages) doi:10.1115/1.3239585 History: Received December 27, 1982; Online October 15, 2009


The paper describes the experimental investigation of the three-dimensional flow through a low-speed, low aspect ratio, high turning annular turbine nozzel guide vane. The flow is explored by means of double-head, four-hole pressure probes in twelve axial planes from upstream to far downstream of the blade row. The results are presented under the form of contour plots and spanwise pitch-averaged distributions of losses, flow angles, and static pressure distributions. The concept of presenting the evolution of the endwall boundary layer under the form of streamwise and crossflow velocity components is discussed in detail.

Copyright © 1984 by ASME
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