Actions for Effect of wall suction on performance of a short annular diffuser at inlet Mach numbers up to 0.5.

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Effect of wall suction on performance of a short annular diffuser at inlet Mach numbers up to 0.5.

Author
Juhasz, A. J.
Published
Oct 1, 1975.
Physical Description
1 electronic document
Online Version

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Summary
A short annular diffuser equipped with wall bleed (suction)capability was evaluated at inlet Mach numbers of 0.186 to 0.5. The diffuser had an area ratio of 4.0 and a length-to-inlet height ratio of 1.6. Test results show that the exit velocity profiles, typical of annular jet flow without suction, could be considerably flattened by application of wall suction. This improved performance was also reflected in diffuser effectiveness (static-pressure recovery) and total-pressure loss results. At the inlet Mach number of 0.5 diffuser static-pressure recovery is equal to or better than at lower inlet Mach numbers for comparable suction rates.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19750024928.
Accession ID: 75N33001.
NASA-TM-X-3302.
E-8393.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15738537