THE BOUNDARY-LAYER ON A SLIGHTLY YAWED CYLINDER

The velocity in a turbulent boundary layer on a long cylinder at a sli ght yaw to the free stream was measured using hot wire anemometry for yaw angles of - 0.55 degrees less than or equal to alpha less than or equal to 0.55 degrees. The mean velocity profile retains a log region regardless of yaw with a slope that is slightly dependent upon the yaw angle. The boundary layer thickness increases nonlinearly with yaw an gle, but the dimensionless distance from the wall of the maximum turbu lence intensity is independent of yaw angle.