What is it about?
This perspective article presents a breakthrough—a universal law governing the equilibrium scour depth at a circular pier in clear-water scour condition. Our phenomenological model reveals that the equilibrium scour depth to pier diameter ratio follows the two-fifths power law with the pier-scour number, encompassing all the key parameters influencing the scour phenomenon. The proposed law finds compelling support from extensive experimental data.
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Why is it important?
Scour at bridge piers impacts infrastructure resilience and human safety. In the early years of the 21st century, the National Cooperative Highway Research Program in the United States has identified over a hundred thousand bridges affected by scour. Establishing a universal relation for predicting the equilibrium scour depth, crucial for mitigating bridge scour, has been a longstanding challenge.
Perspectives
We address this long-lasting problem of pier scour with the goal of establishing a universal law of equilibrium scour depth in clear-water scour condition through the application of a phenomenological model.
Professor Subhasish Dey
Indian Institute of Technology Jodhpur
Read the Original
This page is a summary of: The universal two-fifths law of pier scour, Physics of Fluids, April 2024, American Institute of Physics,
DOI: 10.1063/5.0200865.
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