Author(s): V. P. Rajen Dran; V. C. Patel
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Abstract: Experiments were conducted in a simple model pump sump with a vertical intake pipe in a rectangular channel. The geometry and flow conditions were selected to avoid free-surface vortices but generate a system of subsurface vortices attached to the floor, the back wall, and the side walls. Vortices of varying strength, core shape and size were observed. A counter-rotating pair of vortices attached to the back wall, and single vortices attached to the floor and the two side walls were found. Quantitative measurements were made using particle image velocimetry (PIV). The floor-attached vortex was found to be the strongest for the conditions studied.
Year: 1997