Determination of Shapes of Boattail Bodies of Revolution for Minimum Wave Drag

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By use of an approximate equation for the wave drag of slender bodies of revolution in a supersonic flow field, the optimum shapes of certain boattail bodies are determined for minimum wave drag. The properties of three specific families of bodies are determined, the first family consisting of bodies having a given length and base area and a contour passing through a prescribed point between the nose and base, the second family having fixed length, base area, and maximum area, and the third family having given length, volume, and base area. The method presented is easily generalized to determine minimum-wave-drag ... continued below

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Adams, Mac C. August 21, 1951.

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

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  • Main Title: Determination of Shapes of Boattail Bodies of Revolution for Minimum Wave Drag
  • Series Title: NACA Technical Notes

Description

By use of an approximate equation for the wave drag of slender bodies of revolution in a supersonic flow field, the optimum shapes of certain boattail bodies are determined for minimum wave drag. The properties of three specific families of bodies are determined, the first family consisting of bodies having a given length and base area and a contour passing through a prescribed point between the nose and base, the second family having fixed length, base area, and maximum area, and the third family having given length, volume, and base area. The method presented is easily generalized to determine minimum-wave-drag profile shapes which have contours that must pass through any prescribed number of points. According to linearized theory, the optimum profiles are found to have infinite slope at the nose but zero radius of curvature so that the bodies appear to have pointed noses, a zero slope at the body base, and no variation of wave drag with Mach number. For those bodies having a specified intermediate.diameter (that is, location and magnitude given), the maximum body diameter is shown to be larger, in general, than the specified diameter. It is also shown that, for bodies having a specified maximum diameter, the location of the maximum diameter is not arbitrary but is determined from the ratio of base diameter to maximum diameter.

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  • Accession or Local Control No: 69X77574
  • URL: http://hdl.handle.net/2060/19690094051 External Link
  • Report No.: NACA-TN-2550
  • Center for AeroSpace Information Number: 19690094051
  • Archival Resource Key: ark:/67531/metadc53152

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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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Creation Date

  • August 21, 1951

Added to The UNT Digital Library

  • Nov. 11, 2011, 7:22 p.m.

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  • March 27, 2018, 11:51 a.m.

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Adams, Mac C. Determination of Shapes of Boattail Bodies of Revolution for Minimum Wave Drag, report, August 21, 1951; (digital.library.unt.edu/ark:/67531/metadc53152/: accessed July 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.