Method of analysis for compressible flow through mixed-flow centrifugal impellers of arbitrary design

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Description

A method is presented for analysis of the compressible flow between the hub and the shroud of mixed-flow impellers of arbitrary design. Axial symmetry was assumed, but the forces in the meridional (hub to shroud) plane, which are derived from tangential pressure gradients, were taken into account. The method was applied to an experimental mixed-flow impeller. The analysis of the flow in the meridional plane of the impeller showed that the rotational forces, the blade curvature, and the hub-shroud profile can introduce severe velocity gradients along the hub and the shroud surfaces. Choked flow at the impeller inlet as determined ... continued below

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Hamrick, Joseph T; Ginsburg, Ambrose & Osborn, Walter M January 1, 1952.

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  • Main Title: Method of analysis for compressible flow through mixed-flow centrifugal impellers of arbitrary design
  • Series Title: NACA Technical Reports

Description

A method is presented for analysis of the compressible flow between the hub and the shroud of mixed-flow impellers of arbitrary design. Axial symmetry was assumed, but the forces in the meridional (hub to shroud) plane, which are derived from tangential pressure gradients, were taken into account. The method was applied to an experimental mixed-flow impeller. The analysis of the flow in the meridional plane of the impeller showed that the rotational forces, the blade curvature, and the hub-shroud profile can introduce severe velocity gradients along the hub and the shroud surfaces. Choked flow at the impeller inlet as determined by the analysis was verified by experimental results.

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  • : 93R21416
  • URL: http://hdl.handle.net/2060/19930092126 External Link
  • Report No.: NACA-TR-1082
  • Center for AeroSpace Information Number: 19930092126
  • Archival Resource Key: ark:/67531/metadc60443

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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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  • January 1, 1952

Added to The UNT Digital Library

  • Nov. 17, 2011, 5:13 p.m.

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  • Feb. 3, 2017, 6:58 p.m.

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Hamrick, Joseph T; Ginsburg, Ambrose & Osborn, Walter M. Method of analysis for compressible flow through mixed-flow centrifugal impellers of arbitrary design, report, January 1, 1952; (digital.library.unt.edu/ark:/67531/metadc60443/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.