According to investigations of various transport processes in complex conditions [1], an abnormal increase in the combustion rate may occur in the boundary layer with combustion behind an obstacle. External gas-dynamic perturbations (enhanced turbulence, acceleration of the main flow) cause a local rise of heat and mass transfer by a factor of 2 to 3. Perhaps, these effects are connected with large structures, formed behind obstacles. It was supposed in [1] that the flow with several attachment points is formed behind the region of closed separation. Without combustion, two separation regions were observed in [2, 3]. Apparently, within these structures, there should be a correlation between the local parameters. The study of such correlations between different physical parameters within the boundary layer will allow determination of spatial dimensions of such structures and obtaining of quantitative data on the flow pattern behind the separation region. The objective of this work is the study of correlations in the experimental data between local gasdynamic and thermophysical parameters in the boundary layer behind a rib at combustion of evaporating ethanol.
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