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Comparison of laser anemometer measurements and theory in an annular turbine cascade with experimental accuracy determined by parameter estimationExperimental measurements of the velocity components in the blade to blade (axial tangential) plane were obtained with an axial flow turbine stator passage and were compared with calculations from three turbomachinery computer programs. The theoretical results were calculated from a quasi three dimensional inviscid code, a three dimensional inviscid code, and a three dimensional viscous code. Parameter estimation techniques and a particle dynamics calculation were used to assess the accuracy of the laser measurements, which allow a rational basis for comparison of the experimenal and theoretical results. The general agreement of the experimental data with the results from the two inviscid computer codes indicates the usefulness of these calculation procedures for turbomachinery blading. The comparison with the viscous code, while generally reasonable, was not as good as for the inviscid codes.
Document ID
19820020374
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Goldman, L. J. (NASA Lewis Research Center Cleveland, OH, United States)
Seasholtz, R. G. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
January 1, 1982
Subject Category
Aerodynamics
Report/Patent Number
NASA-TM-82860
NAS 1.15:82860
E-1228
Accession Number
82N28250
Funding Number(s)
PROJECT: RTOP 505-32-2B
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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