Author(s): Jungseok Ho; Todd Marti; Julie Coonrod

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Keywords: Best management practices; computational fluid dynamics; debris removal; numerical model; particle motion; physical model; storm water

Abstract: A simple and effective debris removal structure, the Drop Flow Debris Filter, is developed for urban storm water channels as a best management practice. This structure consists of two almost horizontal, slightly sloped plates, one placed above the other to form a debris basin. This system allows storm water to exit through the bottom of the debris basin, while floating and heavy debris are retained in the basin. A 1 : 12 scale physical model in a flume and a three-dimensional computational fluid dynamics model were used to investigate the debris-filtering performance of the system. To achieve enhanced debris filtering, a horizontal ramp was added to the preliminary model and both plates were curved. The curved plates model showed the most successful debris filtering performance by providing a compact short-circulation zone of water with reduced separation length and increased energy loss.

DOI: https://doi.org/10.1080/00221686.2010.481834

Year: 2010