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Performance of a blunt-lip side inlet with ramp bleed, bypass, and a long constant-area duct ahead of the engine : Mach number 0.66 and 1.5 to 2.1
Unsteady shock-induced separation of the ramp boundary layer was reduced and stabilized more effectively by external perforations than by external or internal slots. At Mach 2.0 peak total-pressure recovery was increased from 0.802 to 0.89 and stable mass-flow range was increased 185 percent over that for the solid ramp. Peak pressure recovery occurred just before instability. The 7 and one-third-diameter duct ahead of the engine reduced large total-pressure distortions but was not as successful for small distortions as obtained with throat bleed. By removing boundary-layer air the bypass nearly recovered the total-pressure loss due to the long duct.
Date:
December 28, 1956
Creator:
Allen, John L.
Object Type:
Report
System:
The UNT Digital Library
Oklahoma City Times (Oklahoma City, Okla.), Vol. 67, No. 278, Ed. 3 Friday, December 28, 1956
Daily newspaper from Oklahoma City, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 28, 1956
Creator:
Gaylord, E. K.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History