The static pressure and heat transfer rate distributions have been measured in the reattachment region of free shear layers. In the first part, a cone/cavity model and the effects of gas injection have been studied. Results have been presented for both laminar and turbulent flows. In the second part, a flow model has been investigated which is analogous with an Edney type III shockwave interaction, found when the bow shock of a blunt hypersomic body is intersected by an extraneous shock.