Accession Number : ADD003128

Title :   Dual Stage Supersonic Diffuser.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Milling,Robert W ; Von Ohain,Hans J P

Report Date : 21 Sep 1976

Pagination or Media Count : 13

Abstract : The patent relates to a diffuser having a dual-stage configuration with the diffusing element of the first stage aligned perpendicularly to the second stage. The diffuser vanes of the first stage are inclined at an angle to the direction of flow so that the flow field between the first stage and the second stage changes from the conditions before diffuser starting to the conditions after diffuser starting to produce an effect similar to the change in flow cross section of a variable throat area diffuser. The second stage of the diffuser has its wall configured similar to the contour of a two dimensional ramjet inlet diffuser.

Descriptors :   *Supersonic diffusers, *Patents, Nozzle throats, Flow fields, Variable area nozzles, Wind tunnel nozzles

Subject Categories : Test Facilities, Equipment and Methods
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE