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1955 Edition, January 1, 1955

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An investigation of the discharge and drag characteristics of auxiliary-air outlets discharging into a transonic stream

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Product Details:

  • Revision: 1955 Edition, January 1, 1955
  • Published Date: January 1, 1955
  • Status: Active, Most Current
  • Document Language: English
  • Published By: National Air and Space Administration (NASA)
  • Page Count: 40
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

The flow characteristics of a series of rectangular outlets which discharge air into a transonic stream, together with the wall static-pressure distributions in the vicinity of the outlets and the thrust coefficients of rectangular and circular outlets, are presented herein. Discharge coefficients are presented as a function of the discharge flow ratio, defined as the ratio of the measured discharge rate to the rate of flow through a stream tube with a cross-sectional area equal to that of the outlet. Wall static-pressure distributions are shown as pressure coefficients for several values of discharge flow ratio and Mach number. Thrust coefficients are presented as functions of discharge flow ratio at several stream Mach numbers for some of the outlets tested.