Investigation of supersonic mixing layers

N. L. Messersmith, S. G. Goebel, J. P. Renie, J Craig Dutton, Herman Krier

Research output: Contribution to journalArticlepeer-review


A NEWLY constructed, dual-stream, supersonic wind tunnel has been designed to provide comparatively long run times for investigations of reactive and nonreactive, two-dimensional supersonic mixing layers. Control of the stagnation temperatures enables the velocity ratio, density ratio, and convective Mach number of the two streams to be varied. Laser Doppler velocimetry has been employed to measure the incoming boundary layers, the subsequent compressible mixinglayer growth rate, and the mean and turbulent velocity field development for two density ratios of 0.76 and 1.56, corresponding to velocity ratios of 0.79 and 0.58 and convective Mach numbers of 0.20 and 0.45, respectively. For a given density and velocity ratio, the convective Mach number has been found to correlate the ratio of compressible to incompressible mixing layer growth rate, as suggested by other workers.

Original languageEnglish (US)
Pages (from-to)353-354
Number of pages2
JournalJournal of Propulsion and Power
Issue number4
StatePublished - 1990

ASJC Scopus subject areas

  • Fuel Technology
  • Aerospace Engineering
  • Mechanical Engineering
  • Space and Planetary Science


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