Velocity distributions in incompressible boundary layers on the various rotating bodies in axial flow were investigated experimentally. The rotating bodies consisted of a cylinder with nose section of three forms. Tests were run with two Reynolds numbers and the ratio of peripheral velocity of the body to main-stream velocity was in the range 0–4. The centrifugal force of the rotation considerably affected the meridian velocity profiles. Momentum thicknesses calculated from a theory with assumption of the quasi-two-dimensional velocity profile agreed well with the experiments except in the case of high rotating speed. The local shearing stress in the rotating direction is discussed.

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