Document Type : Research Paper
Authors
1 1 Department of Water Resources Engineering and Management, School of Civil and Environmental Engineering (SCEE), National University of Sciences & Technology (NUST), Islamabad, Pakistan. 2 NUST Institute of Civil Engineering (NICE), National University of Sciences & Technology (NUST), Islamabad, Pakistan.
2 School of Architecture, Design and the Built Environment, Nottingham Trent University, Nottingham, UK.
Abstract
The paper narrates a study of a numerical model taken into consideration to explore the overall hydraulic performance of Constructed wetland located at NUST H-12 Campus, Islamabad. The governing equations of flow in wetland ponds and the transport particle were solved using COMSOL Multiphysics 5.0. In this study, the simulation of the model is done to find the dead spaces and short-circuiting in the wetland along with providing remedial measures to reduce the dead spaces. The comparison of two turbulent models i.e. K-ω and K-ε were also made to depict the velocity of wetland and the particle tracer study was also conducted to find the behavior of wetland. The model was simulated with experimental data and the results revealed that 15% to 20% area of wetland is experiencing short-circuiting. Alternative wetland designs were suggested for the same flow condition. The K-ω model was considered to be more suitable due to the limitation of K-ε model.
Keywords
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