A summary of preliminary investigations into the characteristics of combustion screech in ducted burners

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Description

Increasing demands for higher afterburner performance have required operation at progressively higher fuel-air ratios, which has increased the occurrence and intensity of screeching combustion. The onset of screech may be followed by rapid destruction of the combustor shell and other combustor parts. Because of its destructive characteristics, considerable effort has been expended to understand and eliminate screech. NACA work on the screeching combustion problem prior to 1954 is summarized herein. These studies showed that resonant acoustic oscillations are a primary component of the screech mechanism in the burners thus far investigated.

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Creator: Unknown. January 1, 1958.

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This report is part of the collection entitled: National Advisory Committee for Aeronautics Collection and one other and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 214 times , with 4 in the last month . More information about this report can be viewed below.

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  • Main Title: A summary of preliminary investigations into the characteristics of combustion screech in ducted burners
  • Series Title: NACA Technical Reports

Description

Increasing demands for higher afterburner performance have required operation at progressively higher fuel-air ratios, which has increased the occurrence and intensity of screeching combustion. The onset of screech may be followed by rapid destruction of the combustor shell and other combustor parts. Because of its destructive characteristics, considerable effort has been expended to understand and eliminate screech. NACA work on the screeching combustion problem prior to 1954 is summarized herein. These studies showed that resonant acoustic oscillations are a primary component of the screech mechanism in the burners thus far investigated.

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  • Accession or Local Control No: 93R21654
  • URL: http://hdl.handle.net/2060/19930092364 External Link
  • Report No.: NACA-TR-1384
  • Center for AeroSpace Information Number: 19930092364
  • Archival Resource Key: ark:/67531/metadc60809

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National Advisory Committee for Aeronautics Collection

The National Advisory Committee for Aeronautics (NACA) was a U.S. federal agency founded on March 3, 1915 to undertake, promote, and institutionalize aeronautical research. On October 1, 1958 the agency was dissolved, and its assets and personnel transferred to the newly created National Aeronautics and Space Administration (NASA).

Technical Report Archive and Image Library

This selection of materials from the Technical Report Archive and Image Library (TRAIL) includes hard-to-find reports published by various government agencies. The technical publications contain reports, images, and technical descriptions of research performed for U.S. government agencies. Topics range from mining, desalination, and radiation to broader physics, biology, and chemistry studies. Some reports include maps, foldouts, blueprints, and other oversize materials.

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Creation Date

  • January 1, 1958

Added to The UNT Digital Library

  • Nov. 17, 2011, 5:13 p.m.

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  • April 5, 2018, 7:43 p.m.

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A summary of preliminary investigations into the characteristics of combustion screech in ducted burners, report, January 1, 1958; (digital.library.unt.edu/ark:/67531/metadc60809/: accessed August 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.