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An experimental investigation of secondary flow in an accelerating, rectangular elbow with 90 degrees of turning

Description: Report presenting secondary flow tests on an accelerating elbow with 90 degrees of turning designed for prescribed velocities that eliminate boundary-layer separation by avoiding local decelerations along the walls. Secondary flows were investigated for six boundary-layer thicknesses generated on the plane walls of the elbow by upstream spoilers. Results regarding the downstream total-pressure distribution and spanwise wall-static-pressure distributions are provided.
Date: October 1953
Creator: Stanitz, John D.; Osborn, Walter M. & Mizisin, John
Partner: UNT Libraries Government Documents Department
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Design and Test of Mixed-Flow Impellers 3: Design and Experimental Results for Impeller Model MFI-2A and Comparison With Impeller Model MFI-1A

Description: "A mixed-flow impeller was designed to give a prescribed blade-surface velocity distribution at mean blade height for a given hub-shroud profile. The blade shape at mean blade height, which was produced by the prescribed velocity distribution, was extended by means of radial lines to form the composite blade shape from hub to shroud. The resulting blade was relatively thick; therefore, it was necessary to retain the inverse blade taper which resulted from extension of the radial lines in order … more
Date: March 10, 1953
Creator: Hamrick, Joseph T.; Osborn, Walter M. & Beede, William L.
Partner: UNT Libraries Government Documents Department
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