Role of velocity ratio on supersonic jet mixing

Paul J Strykowski, Farrukh Alvl, Anjaneyulu Krothapalli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The mixing dynamics of compressible jets were examined at velocity ratios less than zero. These negative velocity ratios were achieved by creating a counterflowing stream around the periphery of a supersonic jet. This countercurrent flow as investigated experimentally in highly compressible shear layers at convective Mach numbers between 0.8 and 2.0. The measurements demonstrate that the diffusion of supersonic jets with counterflow exceeds that observed in jets without counterflow by over 100%. The experiments also revealed that despite the highly three-dimensional nature of the mixing layer at high convective Mach numbers, the countercurrent mixing layer can sustain large scale structures which are shown to be responsible for the enhanced levels of jet diffusion.

Original languageEnglish (US)
Title of host publicationHigh Speed Jet Flows
EditorsT.T. Huang, J. Turner, M. Kawahashi, M.V. Otugen
PublisherASME
Pages97-102
Number of pages6
Volume214
StatePublished - Dec 1 1995
EventProceedings of the 1995 ASME/JSME Fluids Engineering and Laser Anemometry Conference and Exhibition - Hilton Head, SC, USA
Duration: Aug 13 1995Aug 18 1995

Other

OtherProceedings of the 1995 ASME/JSME Fluids Engineering and Laser Anemometry Conference and Exhibition
CityHilton Head, SC, USA
Period8/13/958/18/95

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