Oscillatory flow in a y-shaped bifurcation

Fluid particle trajectories in oscillatory flow in Y-branched tubes of equal radii were quantitatively analyzed for an oscillatory number square root 2pi/Tv.ro of the order of unity and qualitatively for an oscillatory number of the order of 25. Radial distribution of trajectories and secondary motions are described. This work is an attempt to know some of the features of oscillatory flow present in blood and air motion with similar boundary conditions.