Abstract
The structure of large-scale secondary flow in a turbulent meandering channel at a low Reynolds number is investigated using LDV measurements and flow visualization techniques. Coherent structure formed in a turbulent meandering channel flow incline to the secondary flow direction which depends on the distribution of transverse component of mean velocity. Large-scale shear layer consisted of three regions characterized by property of different shear in transverse cross section of a turbulent meandering channel flow was formed by the inclination of the coherent motion. The shear structure plays an important role to generate large-scale secondary flow in a turbulent meandering channel.
