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Open AccessArticle

Modelling of Flow Parameters through Subsurface Drainage Modules for Application in BIOECODS

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Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia
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Department of Civil Engineering, Ahmadu Bello University, Zaria 810107, Nigeria
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River Engineering and Urban Drainage Research Centre (REDAC), Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Pulau Pinang, Malaysia
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Department of Water Resources and Environmental Engineering, Ahmadu Bello University, Zaria 810107, Nigeria
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Department of Water Resources and Environmental Engineering, University of Ilorin, Ilorin 240103, Nigeria
*
Author to whom correspondence should be addressed.
Water 2019, 11(9), 1823; https://doi.org/10.3390/w11091823
Received: 15 June 2019 / Revised: 22 July 2019 / Accepted: 24 July 2019 / Published: 31 August 2019
(This article belongs to the Section Hydraulics)
The flow resistance of the existing modules in the bio-ecological drainage system (BIOECODS) is high and may lead to flood instead of its mitigation. As part of efforts to enhance the performance of the system, the river engineering and urban drainage research center (REDAC) module was developed. This study modelled the hydrodynamics of flow through this module using FLOW-3D and laboratory experiments for two cases of free flow without module (FFWM) and flow with a module (FWM) to understand and visualize the effects of the module. With less than 5% error between the numerical and experimental results, REDAC module altered the flow pattern and created resistance by increasing the Manning’s roughness coefficient at the upstream, depth-averaged flow velocity (43.50 cm/s to about 46.50 cm/s) at the downstream and decreasing water depth (7.75–6.50 cm). These variations can be attributed to the complex nature of the module pattern with further increase across the porous openings. Therefore, the technique used herein can be applied to characterize the behavior of fluids in larger arrangments of modules and under different flow conditions without the need for expensive laboratory experiments. View Full-Text
Keywords: hydrodynamics; FLOW-3D; bioecods; redac; flow resistance; subsurface drainage; module; attenuation hydrodynamics; FLOW-3D; bioecods; redac; flow resistance; subsurface drainage; module; attenuation
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Sa’id Abdurrasheed, A.; Wan Yusof, K.; Hamid Hussein Alqadami, E.; Takaijudin, H.; Ab. Ghani, A.; Muhammad, M.M.; Sholagberu, A.T.; Zainalfikry, M.K.; Osman, M.; Shihab Patel, M. Modelling of Flow Parameters through Subsurface Drainage Modules for Application in BIOECODS. Water 2019, 11, 1823.

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