Abstract
The direct numerical simulation for curved turbulent channel flows with several spanwise system-rotation is performed. Near the convex wall, the flow is stabilized with the positive rotation and is destabilized with the negative one. On the other hand, the flow field near the concave wall becomes stable with the negative rotation and unstable with the positive one. The profiles of the mean quantities are standardized by the effective rotation number including the curvature effect. The Goertler vortices are present under the strong rotation and curvature cases.
