Free-stream turbulence intensity effects on the convex-curved turbulent boundary layer are investigated. An attached fully turbulent boundary layer, grown on a flat plate, is introduced to a convex wall of constant radius of curvature. Two cases with free-stream turbulence intensities of 1. 85% and 0. 65%, taken in the same facility with moderate curvature, delta /R equals 0. 03-0. 045, are compared. The two cases have similar flow conditions upon entry to the curve, thus separating free-stream turbulence effects within the curve from the other effects. The higher turbulence case shows stronger curvature effects on C//f/2 and on streamwise normal and shear stress profiles than those observed in the lower turbulence case.
|Original language||English (US)|
|Journal||American Society of Mechanical Engineers (Paper)|
|State||Published - 1986|