Smoke studies of secondary flows in bends, tandem cascades, and high-turning configurations

One of 5,164 reports in the series: NACA Research Memorandums available on this site.

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Description

Flow-visualization studies, using smoke, were made of the secondary flows in rectangular bends, tandem cascades, and high-turning configurations. The roll-up of the wall boundary layer of a rectangular bend forms a passage vortex near the suction surface similar to that previously observed for cascades. The vortex so formed then shifts out into the main stream. Because of leading-edge effects, the boundary-layer flows in bends were found to be sufficiently different from the flows in blade rows to make direct application of bend results to blade rows inadvisable.

Physical Description

33 p. : ill.

Creation Information

Hansen, Arthur G.; Herzig, Howard Z. & Costello, George R. March 11, 1953.

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

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  • Main Title: Smoke studies of secondary flows in bends, tandem cascades, and high-turning configurations
  • Series Title: NACA Research Memorandums

Description

Flow-visualization studies, using smoke, were made of the secondary flows in rectangular bends, tandem cascades, and high-turning configurations. The roll-up of the wall boundary layer of a rectangular bend forms a passage vortex near the suction surface similar to that previously observed for cascades. The vortex so formed then shifts out into the main stream. Because of leading-edge effects, the boundary-layer flows in bends were found to be sufficiently different from the flows in blade rows to make direct application of bend results to blade rows inadvisable.

Physical Description

33 p. : ill.

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  • Accession or Local Control No: 93R16891
  • URL: http://hdl.handle.net/2060/19930087601 External Link
  • Report No.: NACA-RM-E52L24a
  • Center for AeroSpace Information Number: 19930087601
  • Archival Resource Key: ark:/67531/metadc59619

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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

  • March 11, 1953

Added to The UNT Digital Library

  • Nov. 17, 2011, 10:13 p.m.

Description Last Updated

  • April 10, 2018, 6:42 p.m.

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Hansen, Arthur G.; Herzig, Howard Z. & Costello, George R. Smoke studies of secondary flows in bends, tandem cascades, and high-turning configurations, report, March 11, 1953; (digital.library.unt.edu/ark:/67531/metadc59619/: accessed November 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.