Investigation of flow characteristics over porous media
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Date
2019-06
Authors
Sarvendren A/L Sugumaren
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Abstract
Porous media is the one of the most used components of Sustainable Urban
Drainage System (SUDS). Porous media is effective in reducing peak discharge
because it allows water to infiltrate into the ground and improve the quality of water by
removing physical pollutants. Porous media is usually used in car parks, garden and
pedestrian walkway. This study is carried out with the main objective of investigating
the characteristics of flow over porous media. This is done by carrying out a physical
experimental using method of dam-break flow. Parameters such as initial depth of
reservoir, and the porosity of the porous media, are manipulated. The
experiments were conducted in four cases with five repetitions for each case. Each
cases comprises of different porosity, of 0.227 and 0.286 and different initial depth
of reservoir, of 5cm and 10cm. Deductions were made from studying the
relationship between the lengths of spreading with time. It was found that the flow
propagation in longitudinal and spreading in lateral directions depends on the reservoir
depth and porosity of the media. The findings from this study will provide better
understanding of flow over porous media and thus contribute to the development of
Sustainable Urban Drainage System (SUDS).