Down-flow and horseshoe vortex characteristics of sediment embedded bridge piers |
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Authors: | Jens Unger Willi H Hager |
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Institution: | (1) VAW, ETH Zurich, 8092 Zurich, Switzerland |
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Abstract: | The flow around bridge structures is a recent research topic, given the significance of bridges as basic engineering infrastructures.
This study investigates the internal flow features around circular bridge piers by Particle Image Velocimetry applied both in the horizontal and vertical planes and therefore allowing for a quasi-spatial visualization of the velocity
field. The temporal evolution of the vertical deflected flow at the pier front and the horseshoe vortex inside the increasing
scour hole were explored resulting in the velocity and vorticity profiles. This work, therefore, provides novel insight into
the complex and fascinating two-phase flow around circular bridge piers placed in loose sediment and provides an experimental
data basis for advanced numerical simulation. |
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Keywords: | |
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