Measurements in the heated turbulent boundary layer on a mildly curved concave surface

Extensive single-point mean flow and turbulence measurements are reported for a two-dimensional turbulent boundary layer on a heated concave wall curved to a radius approximately equal to 120 times the initial boundary-layer thickness. At the end of the curved wall, where the flow had been turned through 23 degrees, the velocity boundary layer was 14 percent thicker than that previously measured on a flat plate and the skin-friction coefficient and Stanton number exceeded their flat-plate values by 12 percent and 19 percent respectively. Changes in the Reynolds stresses and turbulent heat fluxes were of the same order while the triple velocity and velocity-temperature products were roughly doubled.