Many loss parameters are used in the turbomachinery field for correlating the effects on losses of numerous geometric and aerodynamic variables associated with blade rows. The parameter most common to these correlations is the ratio of a loss parameter to a velocity parameter, here called the loss coefficient. Such loss coefficients of different forms used for compressors by Howell and the NACA and those used for turbines by Ainley and Soderberg, plus an additional one, are compared explicitly for possible use in both compressors and turbines. Over a range of Mach numbers, loss coefficient values are compared with loss levels fixed and for representative blading cascade test data, and pressure recoveries and stage efficiencies are compared with loss coefficient values fixed. It is shown that for a low Mach number the different parameters are equal and interchangeable; however, as the Mach number increases, differences appear and grow larger, so that a given combination of loss coefficient value and Mach number implies different entropy-rise values depending upon which parameter is being used. The criteria used here for comparing the different parameters are that one loss coefficient is better than another a– if its loss coefficient values corresponding to test data vary less over a significant range of Mach number, and b– if the stage efficiency implied by a fixed loss coefficient value varies in a more realistic way over a range of Mach number. The Soderberg parameter was found to be better for both compressors and turbines than the other loss coefficients investigated.
Skip Nav Destination
Article navigation
July 1972
This article was originally published in
Journal of Engineering for Power
Research Papers
Axial Flow Compressor and Turbine Loss Coefficients: A Comparison of Several Parameters
L. E. Brown
L. E. Brown
Curtiss-Wright Corporation, Wood-Ridge, N. J.
Search for other works by this author on:
L. E. Brown
Curtiss-Wright Corporation, Wood-Ridge, N. J.
J. Eng. Power. Jul 1972, 94(3): 193-201 (9 pages)
Published Online: July 1, 1972
Article history
Received:
December 3, 1971
Online:
July 14, 2010
Citation
Brown, L. E. (July 1, 1972). "Axial Flow Compressor and Turbine Loss Coefficients: A Comparison of Several Parameters." ASME. J. Eng. Power. July 1972; 94(3): 193–201. https://doi.org/10.1115/1.3445672
Download citation file:
Get Email Alerts
Cited By
Numerical Investigation of CO and NO Production From Premixed Hydrogen/Methane Fuel Blends
J. Eng. Gas Turbines Power (April 2025)
An Efficient Uncertainty Quantification Method Based on Inter-Blade Decoupling for Compressors
J. Eng. Gas Turbines Power (April 2025)
Experimental Design Validation of a Swirl-Stabilized Burner With Fluidically Variable Swirl Number
J. Eng. Gas Turbines Power (April 2025)
Experimental Characterization of a Bladeless Air Compressor
J. Eng. Gas Turbines Power (April 2025)
Related Articles
A Correlation-Based Transition Model Using Local Variables—Part II:
Test Cases and Industrial Applications
J. Turbomach (January,0001)
Advanced High-Turning Compressor Airfoils for Low Reynolds Number Condition—Part II: Experimental and Numerical Analysis
J. Turbomach (October,2004)
Related Proceedings Papers
Related Chapters
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Introduction
Centrifugal Compressors: A Strategy for Aerodynamic Design and Analysis
Thermodynamic Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential