Numerical Simulation of A 3-Dimensional Backward-Facing Step Flow
Numerical simulation of a backward-facing step flow for Re = 800, 1200, and 1600 was performed to investigate the three-dimensionality of flows in the transition Reynolds number range. Through flow visualization we conclude that the flow is almost steady and 2 dimensional at a Reynolds number of 800. However, for Re = 1200 and 1600, vortices with 3-dimensional structures are generated periodically and advected downstream along the bottom and top walls.
KeywordsVortex Titan Vorticity
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