Journal of Fluid Mechanics

Measurements of heat transfer in separated highenthalpy dissociated laminar hypersonic flow behind a step

S. L.  Gai a1, N. T.  Reynolds a1, C.  Ross a1 and J. P.  Baird a1
a1 University College, UNSW, Australian Defence Force Academy, Canberra, Australia

Article author query
gai sl   [Google Scholar] 
reynolds nt   [Google Scholar] 
ross c   [Google Scholar] 
baird jp   [Google Scholar] 


Measurements of heat transfer in the separated region behind a rearward-facing step in a hypersonic high-enthalpy stream, are described. The range of enthalpies considered was much greater than those reported previously in the literature. High-response surface thermocouples were used to measure the heat-transfer rates. Flow visualization by way of interferograms, with a Mach-Zehnder interferometer, were obtained and improved visualization was further facilitated by digitizing the interferograms and using Fourier analysis to determine fringe positions. This then provided a phase map of the flow region in which the phase was colour coded to emphasize flow characteristics.

(Received May 19 1987)
(Revised July 17 1988)