Three-dimensional imaging of hypersonic flow at MHz-rate

Richard B. Miles, Alexander J. Smits, Mark B. Huntley, Pingfan Wu, Rene Tolboom

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations


This paper reports the development of simultaneous MHz-rate multi-dimensional imaging and three-dimensional rendering of Mach 8 transitional flow using a pulse-burst laser and high-rate CCD framing camera system. Experiments are conducted on elliptic cone models and show the evolution of the boundary layer structure near the centerline of the model where the transition occurs. Images are taken using Rayleigh scattering from a CO2 fog of particulates which condense in the cold core portions of the flow but not in the boundary layer. Planform and spanwise images are simultaneously recorded so the full three- dimensional evolution of the outer portion of the boundary layer can be monitored. The slow transitional structure evolution rate allows the frozen flow approximation to be used so the sequential spanwise images can be assembled into a full three-dimensional rendering of the outer boundary layer surface.

Original languageAmerican English
StatePublished - 2001
Event39th Aerospace Sciences Meeting and Exhibit 2001 - Reno, NV, United States
Duration: Jan 8 2001Jan 11 2001


Other39th Aerospace Sciences Meeting and Exhibit 2001
Country/TerritoryUnited States
CityReno, NV

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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