Recent progress on high-speed separated base flows

J. C. Dutton, J. L. Herrin, M. J. Molezzi, T. Mathur, K. M. Smith

Research output: Contribution to conferencePaperpeer-review

Abstract

Recent work in the area of high-speed separated flows is reviewed with particular emphasis on problems related to missile and projectile afterbody and base flows. A brief summary is first given of the current state-of-the-art in base flow numerical predictions and previous experimental studies. This is followed by discussions of our recent experimental work in this area. The particular experiments described are: detailed mean velocity and turbulence measurements for a cylindrical afterbody in Mach 2.5 flow, a similar study for a five degree boattailed afterbody that explains the associated drag reduction effects, initial pressure and velocity measurements quantifying the effects of base bleed in supersonic base flow, a particle image velocimetry study that has delineated the mechanisms of base drag reduction for a planar bluff body with a base cavity in subsonic flow, and Mie scattering visualizations of large-scale turbulent structures in the shear layers and trailing wake of a two-dimensional, supersonic base flow.

Original languageEnglish (US)
StatePublished - Jan 1 1995
Event33rd Aerospace Sciences Meeting and Exhibit, 1995 - Reno, United States
Duration: Jan 9 1995Jan 12 1995

Other

Other33rd Aerospace Sciences Meeting and Exhibit, 1995
Country/TerritoryUnited States
CityReno
Period1/9/951/12/95

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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