Minimum-drag ducted and pointed bodies of revolution based on linearized supersonic theory

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Description

The linearized drag integral for bodies of revolution at supersonic speeds is presented in a double-integral form which is not based on slender-body approximations but which reduces to the equal slender-body expression in the proper limit. With the aid of a suitably chosen auxiliary condition, the minimum-external-wave-drag problem is solved for a transition section connecting two semi-infinite cylinders. The projectile tip is a special case and is compared with the Von Karman projectile tip. Calculations are presented which indicate that the method of analysis gives good first-order results in the moderate supersonic range.

Physical Description

111 - 119 p. : ill.

Creation Information

Parker, Hermon M. March 1, 1954.

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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 61 times . More information about this report can be viewed below.

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  • Main Title: Minimum-drag ducted and pointed bodies of revolution based on linearized supersonic theory
  • Series Title: NACA Technical Reports

Description

The linearized drag integral for bodies of revolution at supersonic speeds is presented in a double-integral form which is not based on slender-body approximations but which reduces to the equal slender-body expression in the proper limit. With the aid of a suitably chosen auxiliary condition, the minimum-external-wave-drag problem is solved for a transition section connecting two semi-infinite cylinders. The projectile tip is a special case and is compared with the Von Karman projectile tip. Calculations are presented which indicate that the method of analysis gives good first-order results in the moderate supersonic range.

Physical Description

111 - 119 p. : ill.

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Identifier

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  • Accession or Local Control No: 93R21514
  • URL: http://hdl.handle.net/2060/19930092224 External Link
  • Report No.: NACA-TR-1213
  • Center for AeroSpace Information Number: 19930092224
  • Archival Resource Key: ark:/67531/metadc60595

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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).

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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

  • March 1, 1954

Added to The UNT Digital Library

  • Nov. 17, 2011, 5:13 p.m.

Description Last Updated

  • June 1, 2018, 2:39 p.m.

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Parker, Hermon M. Minimum-drag ducted and pointed bodies of revolution based on linearized supersonic theory, report, March 1, 1954; (digital.library.unt.edu/ark:/67531/metadc60595/: accessed June 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.