What is it about?
Local scouring around a bridge pier poses a severe threat to the safety of the bridge. A better understanding of flow features around the bridge piers is necessary for accurate prediction of scour depth. The ridges of the finite-time Lyapunov exponent (FTLE), called the Lagrangian coherent structures (LCSs), were used to extract the flow features around a circular bridge pier with an evolving scour hole.
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Why is it important?
An accurate prediction of scour depth is essential for the safety of the bridge. A better understanding of flow features and the interactions among themselves is vital for accurate prediction of scour depth. Lagrangian coherent structures (LCS) provide great insight into the flow field and extract additional features than the Eulerian methods. Hence the LCS method is used to extract the flow features around the bridge pier. The information can be used to improve the scour depth prediction equations.
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This page is a summary of: Extraction of flow features around a bridge pier with an evolving scour hole using Lagrangian coherent structures, Physics of Fluids, May 2024, American Institute of Physics,
DOI: 10.1063/5.0208373.
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