Impingement of Water Droplets on an Ellipsoid with Fineness Ration 10 in Axisymmetric Flow

One of 4,120 reports in the series: NACA Technical Notes available on this site.

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From Summary: "The presence of radomes and instruments that are sensitive to water films or ice formations in the nose section of all-weather aircraft and missiles necessitates a knowledge of the droplet impingement characteristics of bodies of revolution. Because it is possible to approximate many of these bodies with an ellipsoid of revolution, droplet trajectories about an ellipsoid of revolution with a fineness ratio of 10 were computed for incompressible axisymmetric air flow. From the computed droplet trajectories, the following impingement characteristics of the ellipsoid surface were obtained and are presented in terms of dimensionless parameters: (1) total rate of ... continued below

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37 p. : ill.

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Brun, Rinaldo J. & Dorsch, Robert G. May 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 31 times . More information about this report can be viewed below.

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  • Main Title: Impingement of Water Droplets on an Ellipsoid with Fineness Ration 10 in Axisymmetric Flow
  • Series Title: NACA Technical Notes

Description

From Summary: "The presence of radomes and instruments that are sensitive to water films or ice formations in the nose section of all-weather aircraft and missiles necessitates a knowledge of the droplet impingement characteristics of bodies of revolution. Because it is possible to approximate many of these bodies with an ellipsoid of revolution, droplet trajectories about an ellipsoid of revolution with a fineness ratio of 10 were computed for incompressible axisymmetric air flow. From the computed droplet trajectories, the following impingement characteristics of the ellipsoid surface were obtained and are presented in terms of dimensionless parameters: (1) total rate of water impingement, (2) extent of droplet impingement zone, and (3) local rate of water impingement."

Physical Description

37 p. : ill.

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  • Accession or Local Control No: 93R13136
  • URL: http://hdl.handle.net/2060/19930083846 External Link
  • Report No.: NACA-TN-3147
  • Center for AeroSpace Information Number: 19930083846
  • Archival Resource Key: ark:/67531/metadc57001

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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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  • May 1954

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  • Nov. 16, 2011, 7:33 a.m.

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  • March 28, 2018, 11:24 a.m.

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Brun, Rinaldo J. & Dorsch, Robert G. Impingement of Water Droplets on an Ellipsoid with Fineness Ration 10 in Axisymmetric Flow, report, May 1954; (digital.library.unt.edu/ark:/67531/metadc57001/: accessed July 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.