Experimental investigation of flow in an annular cascade of turbine nozzle blades of constant discharge angle

One of 5,165 reports in the series: NACA Research Memorandums available on this site.

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Description

The experimental performance of turbine nozzle blades designed for a constant discharge angle was investigated at discharge hub Mach numbers of 1.18, 1.31, and 1.41. Flow characteristics are presented in terms of energy losses, angle gradients, and secondary flow effects. Blade efficiency decreased from 0.983 to 0.978 with increasing Mach number in the range investigated while angle variations in the loss regions became very large, indicating poorer blade performance than efficiency implies.

Physical Description

28 p. : ill.

Creation Information

Kofskey, Milton G.; Rohlik, Harold E. & Monroe, Daniel E. March 3, 1952.

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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 477 times , with 7 in the last month . More information about this report can be viewed below.

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  • Main Title: Experimental investigation of flow in an annular cascade of turbine nozzle blades of constant discharge angle
  • Series Title: NACA Research Memorandums

Description

The experimental performance of turbine nozzle blades designed for a constant discharge angle was investigated at discharge hub Mach numbers of 1.18, 1.31, and 1.41. Flow characteristics are presented in terms of energy losses, angle gradients, and secondary flow effects. Blade efficiency decreased from 0.983 to 0.978 with increasing Mach number in the range investigated while angle variations in the loss regions became very large, indicating poorer blade performance than efficiency implies.

Physical Description

28 p. : ill.

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  • Accession or Local Control No: 93R16300
  • URL: http://hdl.handle.net/2060/19930087010 External Link
  • Report No.: NACA-RM-E52A09
  • Center for AeroSpace Information Number: 19930087010
  • Archival Resource Key: ark:/67531/metadc59154

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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 3, 1952

Added to The UNT Digital Library

  • Nov. 17, 2011, 10:13 p.m.

Description Last Updated

  • March 27, 2018, 3:57 p.m.

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Kofskey, Milton G.; Rohlik, Harold E. & Monroe, Daniel E. Experimental investigation of flow in an annular cascade of turbine nozzle blades of constant discharge angle, report, March 3, 1952; (digital.library.unt.edu/ark:/67531/metadc59154/: accessed December 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.