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Application Focused Schlieren to Nozzle Ejector FlowfieldsThe motivation of the testing was to reduce noise generated by eddy Mach wave emission via enhanced mixing in the jet plume. This was to be accomplished through the use of an ejector shroud, which would bring in cooler ambient fluid to mix with the hotter jet flow. In addition, the contour of the mixer, with its chutes and lobes, would accentuate the merging of the outer and inner flows. The objective of the focused schlieren work was to characterize the mixing performance inside of the ejector. Using flow visualization allowed this to be accomplished in a non-intrusive manner.
Document ID
19990110620
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Mitchell, L. Kerry
(NASA Langley Research Center Hampton, VA United States)
Ponton, Michael K.
(NASA Langley Research Center Hampton, VA United States)
Seiner, John M.
(NASA Langley Research Center Hampton, VA United States)
Manning, James C.
(NASA Langley Research Center Hampton, VA United States)
Jansen, Bernard J.
(Lockheed Engineering and Sciences Co. Hampton, VA United States)
Lagen, Nicholas T.
(Lockheed Engineering and Sciences Co. Hampton, VA United States)
Date Acquired
August 19, 2013
Publication Date
September 1, 1999
Publication Information
Publication: First NASA/Industry High Speed Research Program Nozzle Symposium
Subject Category
Aircraft Propulsion And Power
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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