This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Externally Blown Flap Noise Research
Annotation ability available
Sector:
Language:
English
Abstract
The Lewis Research Center cold-flow model externally blown flap (EBF) noise research test program is summarized. Both engine under-the-wing and over-the-wing EBF wing section configurations were studied. Ten large scale and nineteen small scale EBF models were tested. A limited number of forward airspeed effect and flap noise suppression tests were also run. The key results and conclusions drawn from the flap noise tests are summarized and discussed.
Authors
Topic
Citation
Dorsch, R., "Externally Blown Flap Noise Research," SAE Technical Paper 740468, 1974, https://doi.org/10.4271/740468.Also In
References
- Campbell John P. Johnson, Joseph L. Jr. “Wind-Tunnel Investigation of an External-Flow Jet-Augmented Slotted Flap Suitable for Application to Airplanes With Pod-Mounted Jet Engines.” December 1956
- Lowry John G. Riebe John M. Campbell John P. “The Jet-Augmented Flap,” Institute of Aeronautical Sciences January 1957
- Turner Thomas R. Davenport Edwin E. Riebe John M. “Low-Speed Investigation of Blowing From Nacelles Mounted Inboard and on the Upper Surface of an Aspect-Ratio-7.0 35° Swept Wing with Fuselage and Various Tail Arrangement.” June 1959
- Magieri Domenic J. Hubbard Harvey H. “Preliminary Measurements of the Noise Characteristics of Some Jet-Augmented-Flap Configurations.” 1959
- Dorsch R. G. Krejsa E. A. Olsen W. A. “Blown Flap Noise Research,” AIAA paper no. 71-745 Propulsion Joint Specialsit Conference, 7th Salt Lake City June 1971
- Dorsch R. G. Kreim W. J. Olsen W. A. “Externally-Blown-Flap Noise,” AIAA paper no. 72-129 Aerospace Sciences Meeting, 10th San Diego January 1972
- Olsen William A. Dorsch Robert G. Miles Jeffrey H. “Noise Produced by a Small-Scale Externally Blown Flap.” March 1972
- Gibson Frederick W. “Noise Measurements of Model Jet-Augmented Lift Systems.” April 1972
- Putnam T. W. Lasagna P. L. “Externally Blown Flap Impingement Noise,” AIAA paper no. 72-664 Fluid and Plasma Dynamics Conference, 5th Boston June 1972
- Falarski Michael D. Aoyagi Kiyoshi Koenig David G. “Acoustic Characteristics of Large-Scale STOL Models at Forward Speed.” NASA SP-320 October 1972 443 448
- Lasagna Paul L. Putnam Terrill W. “Externally Blown Flap Impingement Noise.” NASA SP-320 October 1972 427 433
- Jones W. L. Heidelberg L. J. Goldman R. G. “Highly Noise Suppressed Bypass 6 Engine for STOL Applications,” AIAA paper no. 73-1031 Aero-Acoustics Conference Seattle October 1973
- Samanich N. E. Heidelberg L. J. Jones W. L. “Effect of Exhaust Nozzle Configuration on Aerodynamic and Acoustic Performance of an Externally Blown Flap System with a Quiet 6:1 Bypass Ratio Engine,” AIAA paper no. 73-1217 Propulsion Conference, 9th Las Vegas November 1973
- Dorsch Robert G. Lasagna Paul L. Maglieri Domenic J. Olsen William A. “Flap Noise.” NASA SP-311 May 1972 259 290
- Olsen William A. Miles Jeffrey H. Dorsch Richard G. “Noise Generated by Impingement of a Jet Upon a Large Flat Board.” December 1972
- Dorsch R. G. Goodykoontz J. H. Sargent N. B. “Effect of Configuration Variation on Externally Blown Flap Noise,” AIAA paper no. 74-190 Aerospace Sciences Meeting, 12th Washington January-February 1974
- Hayden R. E. “Noise from Interaction of Flow with Rigid Surfaces: A Review of Current Status of Prediction Techniques.” October 1972
- Clark B. Dorsch R. Reshotko M. “Flap Noise Prediction Method for a Powered Lift System,” AIAA paper no. 73-1028 Aero-Acoustics Conference Seattle October 1973
- Miles J. H. “Rational Function Representation of Flap Noise Spectra Including Correction for the Reflection Effects,” AIAA paper no. 74-193 Aerospace Sciences Meeting, 12th Washington January-February 1974
- Chestnutt David Maglieri Domenic J. Hayden Richard E. “Flap Noise Generation and Control.” NASA SP-320 October 1972 413 419
- von Glahn U. H. Groesbeck D. E. Huff R. G. “Peak Axial-Velocity Decay with Single- and Multi-Element Nozzles,” AIAA paper no. 72-48 Aerospace Sciences Meeting, 10th San Diego January 1972
- Goodykoontz J. H. Olsen W. A. Dorsch R. G. “Small-Scale Tests of the Mixer Nozzle Concept for Reducing Blown-Flap Noise.” November 1972
- Goodykoontz Jack H. Dorsch Robert G. Groesbeck Donald E. “Noise Tests for a Mixer Nozzle-Externally Blown Flap System.” May 1973
- Goodykoontz J. H. Dorsch R. G. Wagner J. M. “Acoustic Characteristics of Externally Blown Flap Systems with Mixer Nozzles,” AIAA paper no. 74-192 Aerospace Sciences Meeting, 12th Washington January-February 1974
- Hayden R. E. Scharton T. D. Kadman Y. Wilby J. Rud M. J. “A Preliminary Evaluation of Noise Reduction Potential for the Upper Surface Blown Flap,” Bolt, Beranek, and Newman, Inc. 1972
- McKinzie, D. J. Jr. Burns R. J. “Externally Blown Flap Trailing Edge Noise Reduction by Slot Blowing-A Preliminary Study,” AIAA paper no. 73-245 Aerospace Sciences Meeting, 11th Washington January 1973
- Goodykoontz Jack H. Wagner Jack M. Sargent Noel B. “Noise Measurements for Various Configurations of a Model of a Mixer Nozzle-Externally Blown Flap System.” April 1973
- Reshotko M. Olsen W. A. Dorsch R. G. “Preliminary Noise Tests of the Engine-Over-the-Wing Concept. I. 30° -60° Flap Position.” 1972
- Reshotko Meyer Olsen William A. Dorsch Robert G. “Preliminary Noise Tests of the Engine-Over-the-Wing Concept. II. 10° -20° Flap Position.” 1972
- Dorsch Robert G. Reshotko Meyer “EBF Noise Tests with Engine Under-the-Wing and Over-the-Wing Configurations.” NASA SP-320 October 1972 455 473
- Dorsch R. G. Reshotko M. Olsen W. A. “Flap Noise Measurements for STOL Configurations Using External Upper Surface Blowing,” AIAA paper no. 72-1203 Joint Propulsion Specialist Conference, 8th New Orleans November-December 1972
- von Glahn U. Reshotko M. Dorsch R. “Acoustic Results Obtained with Upper-Surface-Blowing Lift-Augmentation Systems.” November-December 1972
- Reshotko M. Goodykoontz J. H. Dorsch R. G. “Engine-Over-the-Wing Noise Research,” AIAA paper no. 73-631 Fluid and Plasma Dynamics Conference, 6th Palm Springs July 1973
- Falarski M. D. Aoyagi K. Koenig D. G. “Acoustic Characteristics of a Large-Scale Wind-Tunnel Model of an Upper-Surface Blown Flap Transport Having Two Engines.” September 1973
- Reshotko M. Friedman R. “Acoustic Investigation of the Engine-Over-the-Wing Concept Using a D-Shaped Nozzle,” AIAA paper no. 73-1030 Aero-Acoustics Conference Seattle October 1973
- Olsen William A. Friedman Robert “Noise Tests of a Model Engine-Over-the-Wing STOL Configuration Using a Multijet Nozzle with Deflector.” August 1973
- Karchmer Allen M. Friedman Robert “Noise Tests of an Externally Blown Flap with the Engine in Front of the Wing.” December 1973
- Jones W. J. Heidelberg L. J. Goldman R. G. “Highly Noise-Suppressed Bypass 6 Engine for STOL Applications,” AIAA paper no. 73-1031 Aero-Acoustics Conference Seattle October 1973
- Samanich N. E. Heidelberg L. J. Jones W. L. “Effect of Exhaust Nozzle Configuration of Aerodynamic and Acoustic Performance of an Externally Blown Flap System with a Quiet 6:1 Bypass Ratio Engine,” AIAA paper no. 73-1217 Propulsion Conference, 9th Las Vegas November 1973
- Jones W. L. Heidelberg L. J. “Investigation of Noise from Full-Scale High By-Pass Engine and Blown Flap System,” SAE paper 740467 Air Transportation Meeting Dallas May 1974
- Hayden R. E. “Fundamental Aspects of Noise Reduction from Powered-Lift Devices,” SAE paper 730376 Air Transportation Meeting Miami April 1973
- Hayden Richard E. Kadman Yoram Chanaud Robert C. “A Study of the Variable Impedance Surface Concept as a Means for Reducing Noise from Jet Interaction with Developed Lift-Augmenting Flaps,” Rept. 2399 Bolt, Beranek, and Newman, Inc. July 1972
- von Glahn U. Sekas N. Groesbeck D. “Forward Flight Effects on Mixer Nozzle Design and Noise Considerations for STOL Externally Blown Flap Systems,” AIAA paper no. 72-792 Aircraft Design, Flight Test, and Operations Meeting, 4th Los Angeles August 1972
- von Glahn U. Groesbeck D. Goodykoontz J. “Velocity Decay and Acoustic Characteristics of Various Nozzle Geometries with Forward Velocity,” AIAA paper no. 73-629 Fluid and Plasma Dynamics Conference, 6th Palm Springs July 1973
- Lighthill M. J. “The Bakerian Lecture, 1961-Sound Generated Aerodynamically.” Proc. Roy. Soc. London A267 1962 147 182