Experimental study of heat transfer in the front separation region during the interaction of a supersonic flow with a cylinder

The paper presents the results of an experimental study of the interaction of a supersonic flow behind an incident shock wave with a cylindrical obstacle and a boundary layer developing on the inner surface of a driven section of the rectangular shock tube. It is shown that this approach allows one to study the features of non-stationary heat transfer in the front separation region at a supersonic flow enthalpy of $\approx$ 3 MJ/kg and a stagnation temperature of $\approx$ 2500 K. Spatial and temporal distributions of pressure and heat flux in the front separation region are obtained. The structure and dynamics of the interaction region are studied using shadow photography.