Performance Estimation of Axial Flow Turbines
- 1 June 1970
- journal article
- Published by SAGE Publications in Proceedings of the Institution of Mechanical Engineers
- Vol. 185 (1) , 407-424
- https://doi.org/10.1243/pime_proc_1970_185_048_02
Abstract
A comprehensive method of estimating the performance of axial flow steam and gas turbines is presented, based on analysis of linear cascade tests on blading, on a number of turbine test results, and on air tests of model casings. The validity of the use of such data is briefly considered. Data are presented to allow performance estimation of actual machines over a wide range of Reynolds number, Mach number, aspect ratio and other relevant variables. The use of the method in connection with three-dimensional methods of flow estimation is considered, and data presented showing encouraging agreement between estimates and available test results. Finally ‘carpets’ are presented showing the trends in efficiencies that are attainable in turbines designed over a wide range of loading, axial velocity/blade speed ratio, Reynolds number and aspect ratio.Keywords
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