Abstract:
An investigation has been made of the properties of turbulent boundary layers in negligible pressure gradient with homogeneous injection of carbon dioxide through a porous surface. Experiments were carried out at Mach numbers of 0.55, 1.8, 2.5 and 3.5 at various blowing rates, the highest rate at M= 3.5 giving symptoms of incipient 'blow-off'. Velocity, temperature and concentration profiles were measured at various stations along the layer and these results have been used to determine skin-friction and shearstress profiles in the boundary layer. This report contains the full results in tabular form and also presents a preliminary analysis of the results.
