Tests were conducted on a linear cascade of airfoils oscillating in pitch to measure the unsteady pressure response on selected blades along the leading edge plane of the cascade and over the chord of the center blade. The pressure data were reduced to Fourier coefficient form for direct comparison and were also processed to yield integrated loads and, particularly, the aerodynamic damping coefficient. In addition, results from two unsteady theories for cascaded blades with nonzero thickness and camber were compared with the experimental measurements. The three primary results that emerged from this investigation were: (a) from the leading edge plane blade data, the cascade was judged to be periodic in unsteady flow over the range of parameters tested, (b) as before, the interblade phase angle was found to be the single most important parameter affecting the stability of the oscillating cascade blades, and (c) the real blade theory and the experiment were in excellent agreement for the several cases chosen for comparison.
Skip Nav Destination
Article navigation
July 1983
This article was originally published in
Journal of Engineering for Power
Research Papers
Unsteady Aerodynamics and Gapwise Periodicity of Oscillating Cascaded Airfoils
F. O. Carta
F. O. Carta
United Technologies Research Center, East Hartford, Conn. 06108
Search for other works by this author on:
F. O. Carta
United Technologies Research Center, East Hartford, Conn. 06108
J. Eng. Power. Jul 1983, 105(3): 565-574 (10 pages)
Published Online: July 1, 1983
Article history
Received:
December 22, 1981
Online:
September 28, 2009
Citation
Carta, F. O. (July 1, 1983). "Unsteady Aerodynamics and Gapwise Periodicity of Oscillating Cascaded Airfoils." ASME. J. Eng. Power. July 1983; 105(3): 565–574. https://doi.org/10.1115/1.3227455
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
Heat Transfer and Aerodynamics of Turbine Blade Tips in a Linear Cascade
J. Turbomach (April,2006)
Effect of Interblade Phase Angle and Incidence Angle on Cascade Pitching Stability
J. Eng. Power (April,1980)
Supersonic Stall Flutter of High-Speed Fans
J. Eng. Power (July,1982)
Related Chapters
Cavitating Structures at Inception in Turbulent Shear Flow
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
Applications of Elastic-Plastic Fracture Mechanics in Section XI, ASME Code Evaluations
Online Companion Guide to the ASME Boiler & Pressure Vessel Codes
Dynamic Behavior of Pumping Systems
Pipeline Pumping and Compression Systems: A Practical Approach