mbnu FY2018 3.1.2
Figure 2. (a) A schematic diagram of the experimental setup, which allows a direct observation of the x = 0 plane on an inverted microscope. Inflow (along y) is indicated by the blue arrows, and outflow (along x) is indicated by the red arrows. (b) Schematic diagram of a vortex in the cross-slot device for flow at Re > Rec; d and w are the channel depth and width, respectively. [(c)–(e)] μ-PIV images of the vorticity field at x = 0: (c) a symmetric flow field with four cells of Dean vortices; (d) an asymmetric flow field where two intensified Dean vortices have commenced to merge; and (e) a single steady, central streamwise vortex is formed by the merging of the two Dean vortices.
Copyright OIST (Okinawa Institute of Science and Technology Graduate University, 沖縄科学技術大学院大学). Creative Commons Attribution 4.0 International License (CC BY 4.0).
