Similitude in Hydrodynamic Tests Involving Planing

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Description

The problems of using models in planing tests are addressed. If one passes from the model to a hull of linear dimensions n times greater, the speeds are connected by the law of mechanical similitude. The normal forces given by the hydrodynamic equations (perfect fluid) also follow the law of dynamic similitude (Reech's method) and are multiplied by n(exp 3). A series of tests were performed and the actual results were compared to theoretical results.

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[8] p.

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Gruson, M. F. May 1936.

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

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The problems of using models in planing tests are addressed. If one passes from the model to a hull of linear dimensions n times greater, the speeds are connected by the law of mechanical similitude. The normal forces given by the hydrodynamic equations (perfect fluid) also follow the law of dynamic similitude (Reech's method) and are multiplied by n(exp 3). A series of tests were performed and the actual results were compared to theoretical results.

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[8] p.

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  • Accession or Local Control No: 93R23542
  • URL: http://hdl.handle.net/2060/19930094622 External Link
  • Report No.: NACA-TM-795
  • Center for AeroSpace Information Number: 19930094622
  • Archival Resource Key: ark:/67531/metadc63415

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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 1936

Added to The UNT Digital Library

  • Nov. 17, 2011, 5:13 p.m.

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  • Sept. 21, 2018, 10:36 a.m.

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Gruson, M. F. Similitude in Hydrodynamic Tests Involving Planing, report, May 1936; (digital.library.unt.edu/ark:/67531/metadc63415/: accessed November 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.