Experiments with an airfoil model on which the boundary layers are controlled without the use of supplementary equipment

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

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Description

This report describes test made in the Variable Density Wind Tunnel of the NACA to determine the possibility of controlling the boundary layer on the upper surface of an airfoil by use of the low pressure existing near the leading edge. The low pressure was used to induce flow through slots in the upper surface of the wing. The tests showed that the angle of attack for maximum lift was increased at the expense of a reduction in the maximum lift coefficient and an increase in the drag coefficient.

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Abbott, I H April 1, 1931.

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

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  • Main Title: Experiments with an airfoil model on which the boundary layers are controlled without the use of supplementary equipment
  • Series Title: NACA Technical Notes

Description

This report describes test made in the Variable Density Wind Tunnel of the NACA to determine the possibility of controlling the boundary layer on the upper surface of an airfoil by use of the low pressure existing near the leading edge. The low pressure was used to induce flow through slots in the upper surface of the wing. The tests showed that the angle of attack for maximum lift was increased at the expense of a reduction in the maximum lift coefficient and an increase in the drag coefficient.

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  • : 93R10470
  • URL: http://hdl.handle.net/2060/19930081180 External Link
  • Report No.: NACA-TN-371
  • Center for AeroSpace Information Number: 19930081180
  • Archival Resource Key: ark:/67531/metadc54068

Collections

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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

  • April 1, 1931

Added to The UNT Digital Library

  • Nov. 14, 2011, 7:18 p.m.

Description Last Updated

  • Feb. 2, 2017, 1:54 p.m.

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Citations, Rights, Re-Use

Abbott, I H. Experiments with an airfoil model on which the boundary layers are controlled without the use of supplementary equipment, report, April 1, 1931; (digital.library.unt.edu/ark:/67531/metadc54068/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.