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Analysis of Bed Scouring Downstream of Fixed Bed

Author(s): Sung Won Park; Jungkyu Ahn; Dong Hyeon Kim; Jin Hwan Hwang

Linked Author(s): Jin Hwan Hwang

Keywords: Component; Local Scour; Flow Condition; Maximum Scour Depth; Flow Pattern; Turbulence Characteristics

Abstract: Local scour is a part of bed erosions in the vicinity of hydraulic structures and temporal evolution of scour depth can threaten safeties of hydraulic structures. From the previous researches, it was known that dominant factors of local scour process were time phase, initial flow condition and sediment characteristics of the bottom with using experimental and numerical approaches. In this study, clear water tests were conducted with movable bed. A focus of this research was paid to the temporal evolution of scour hole and flow patterns and turbulence characteristics in it. Experimental results were compared with previous empirical relations of maximum scour depth, and were a good agreement with them.

DOI:

Year: 2014

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