This paper describes a newly developed streamline curvature throughflow method for the analysis of radial or mixed flow machines. The code includes curved walls, curved leading and trailing edges, and internal blade row calculating stations. A general method of specifying the empirical data provides separate treatment of blockage, losses, and deviation. Incompressible and compressible fluids are allowed, including real gases and supersonic relative flow in blade rows. The paper describes some new aspects of the code. In particular, a relatively simple numerical model for spanwise mixing is derived; the calculation method for prescribed pressure ratio in compressor blade rows is described; and the method used to redistribute the flow across the span due to choking is given. Examples are given of the use and validation of the code for many types of radial turbomachinery, and these show that it is an excellent tool for preliminary design.
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e-mail: michael.casey@itsm.uni-stuttgart.de
e-mail: chris.robinson@pcaeng.co.uk
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July 2010
Research Papers
A New Streamline Curvature Throughflow Method for Radial Turbomachinery
Michael Casey,
Michael Casey
ITSM-Institute of Thermal Turbomachinery and Machinery Laboratory,
e-mail: michael.casey@itsm.uni-stuttgart.de
Universität Stuttgart
, Pfaffenwaldring 6, D-70569 Stuttgart, Germany
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Chris Robinson
e-mail: chris.robinson@pcaeng.co.uk
Chris Robinson
PCA Engineers Limited
, Studio 2, Deepdale Enterprise Park, Deepdale Lane, Nettleham, Lincoln LN2 2LL, UK
Search for other works by this author on:
Michael Casey
ITSM-Institute of Thermal Turbomachinery and Machinery Laboratory,
Universität Stuttgart
, Pfaffenwaldring 6, D-70569 Stuttgart, Germanye-mail: michael.casey@itsm.uni-stuttgart.de
Chris Robinson
PCA Engineers Limited
, Studio 2, Deepdale Enterprise Park, Deepdale Lane, Nettleham, Lincoln LN2 2LL, UKe-mail: chris.robinson@pcaeng.co.uk
J. Turbomach. Jul 2010, 132(3): 031021 (10 pages)
Published Online: April 7, 2010
Article history
Received:
August 19, 2008
Revised:
February 4, 2009
Online:
April 7, 2010
Published:
April 7, 2010
Citation
Casey, M., and Robinson, C. (April 7, 2010). "A New Streamline Curvature Throughflow Method for Radial Turbomachinery." ASME. J. Turbomach. July 2010; 132(3): 031021. https://doi.org/10.1115/1.3151601
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