NASA NTRS · 19990110620
Application Focused Schlieren to Nozzle Ejector Flowfields
Abstract
The 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.
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Mitchell, L. Kerry, Ponton, Michael K., Seiner, John M., Manning, James C., Jansen, Bernard J., Lagen, Nicholas T.. 1999-09-01. Application Focused Schlieren to Nozzle Ejector Flowfields. https://ntrs.nasa.gov/citations/19990110620
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