Turbomachine discrete-frequency tones, a significant environmental concern, are generated by rotor-stator interactions. Specific spatial modes are generated, but not all generated modes propagate to the far field. It is the propagating spatial modes generated by rotor-stator interaction that represent the community-disturbing far field discrete-frequency noise. Fundamental active airfoil source discrete-frequency noise control experiments are performed, with the active airfoil source control optimized to generate propagating spatial modes to cancel the propagating spatial modes generated by the rotor-stator interaction. These experiments demonstrate the viability and effectiveness of rotary-valve discrete-frequency noise control. Specifically, the active noise control system combines the active airfoil source control with in-duct spatial mode measurement. In this unique design, the active airfoils of the stator vane row are driven by a remote centerbody-mounted rotary-valve system. Propagating spatial mode reductions of 5 dB and 9 dB upstream and downstream with negligible modal spillover are demonstrated. [S0742-4795(00)02702-2]
Skip Nav Destination
Article navigation
April 2000
Technical Papers
Active Control of Discrete-Frequency Turbomachinery Noise Using a Rotary-Valve Actuator
Scott D. Sawyer,
Scott D. Sawyer
Department of Mechanical Engineering, University of Akron, Akron, OH 44323
Search for other works by this author on:
Sanford Fleeter
Sanford Fleeter
Department of Mechanical Engineering, Purdue University, West Lafayette, IN 47907
Search for other works by this author on:
Scott D. Sawyer
Department of Mechanical Engineering, University of Akron, Akron, OH 44323
Sanford Fleeter
Department of Mechanical Engineering, Purdue University, West Lafayette, IN 47907
Contributed by the International Gas Turbine Institute (IGTI) of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Paper presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Indianapolis, IN, June 7–10, 1999; ASME Paper 99-GT-403. Manuscript received by IGTI March 9, 1999; final revision received by the ASME Headquarters January 3, 2000. Associate Technical Editor: D. Wisler.
J. Eng. Gas Turbines Power. Apr 2000, 122(2): 226-232 (7 pages)
Published Online: January 3, 2000
Article history
Received:
March 9, 1999
Revised:
January 3, 2000
Citation
Sawyer, S. D., and Fleeter, S. (January 3, 2000). "Active Control of Discrete-Frequency Turbomachinery Noise Using a Rotary-Valve Actuator ." ASME. J. Eng. Gas Turbines Power. April 2000; 122(2): 226–232. https://doi.org/10.1115/1.483199
Download citation file:
Get Email Alerts
Cited By
Experimental Identification Of Blade Tip Rub Forces At Engine Relevant Temperatures And Speeds
J. Eng. Gas Turbines Power
Study Of Tandem Rotor Dual Wake Interaction With Downstream Stator Under Unsteady Numerical Approach
J. Eng. Gas Turbines Power
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 Time-Domain Harmonic Balance Method for Rotor/Stator Interactions
J. Turbomach (January,2012)
Tip Loss Correction for Actuator/Navier–Stokes Computations
J. Sol. Energy Eng (May,2005)
Unsteady Aerodynamics and Aeroacoustics of a High-Bypass Ratio Fan Stage
J. Turbomach (January,2005)
Related Proceedings Papers
Related Chapters
Analysis on Double Resonances of Generator Stator and Rotor Coupling Rigid Model
International Conference on Computer Technology and Development, 3rd (ICCTD 2011)
Vibration and Squeal Noise Failure Study on Valve Test Based on Feature Analysis
International Conference on Control Engineering and Mechanical Design (CEMD 2017)
Pulsation and Vibration Analysis of Compression and Pumping Systems
Pipeline Pumping and Compression Systems: A Practical Approach, Second Edition