Effect of Inlet-Outlet Diameter on the Water Flow in Gully Trap for Water Drainage System: CFD Analysis

Authors

  • Muhammad Syafiq Bahanuddin Universiti Malaysia Perlis

DOI:

https://doi.org/10.58915/aset.v3i2.1434

Abstract

The efficient functioning of bathroom drainage systems is critical for maintaining hygienic and odor-free living spaces. Central to these systems is the gully trap, which plays a key role in preventing the escape of sewer gases while allowing wastewater to flow freely. This study employs Computational Fluid Dynamics (CFD) to analyze the internal flow characteristics within a gully trap, focusing on the impact of varying inlet and outlet diameters on velocity and pressure distribution. Using the SimFlow software, simulations were conducted to visualize and quantify the flow behavior within the trap. The study involved generating an unstructured mesh with a maximum node limit of 200,000 to ensure a detailed capture of flow dynamics. The finite volume method (FVM) and appropriate turbulence models, such as k-ε or k-ω, were utilized for accurate simulations. Verification through grid independence tests and sensitivity analyses ensured the reliability of the results. The findings revealed significant velocity and pressure distribution variations based on changes in inlet and outlet diameters, providing insights into optimizing gully trap design for enhanced performance. This study contributes to environmental engineering by offering a deeper understanding of fluid dynamics in drainage systems, paving the way for developing more efficient and reliable gully traps. The insights gained are expected to aid in reducing blockages and improving water flow efficiency, ultimately enhancing the sustainability and effectiveness of plumbing systems.

Keywords:

Gully trap, Inlet-Outlet diameter, Computational fluid dynamics, Simflow 4.0

References

Penner, B. Bathroom. Reaktion Books. (2013).

Wilson, A. Drainage and sanitation. In Handbook of ancient water technology, Brill, (2000) pp. 151-179.

Bryson, J., & Battersby, S. Constructions and related matters relevant to environmental health. In Clay's Handbook of Environmental Health, Routledge, (2022) pp. 277-336.

Liao, W. J., Cheng, C. L., & Lee, C. J. Study on the Bathroom Space and the Application of Same-Floor Drainage in Congregate Housing. Water, vol 13, issue 20 (2021) p. 2922.

Coutts, F. J., & Brodie, J. S. Sewer Ventilation and the Intercepting Trap. Journal of the Royal Sanitary Institute, vol 29, issue 4 (1908) pp. 181-201.

Frankl, A., Nyssen, J., Vanmaercke, M., & Poesen, J. Gully prevention and control: Techniques, failures and effectiveness. Earth Surface Processes and Landforms, vol 46, issue 1 (2021) pp. 220-238.

Rietveld, M., de Rijke, D., Langeveld, J., & Clemens, F. Sediment morphology and the flow velocity field in a gully pot: An experimental study. Water, vol 12, issue 10 (2020) p. 2937.

Lo, D. C., Chang, S. W., Liu, H. F., & Chen, C. Y. Experimental and Numerical Study of Hydrodynamic Characteristics of Gullies for Buildings. Water, vol 10, issue 2 (2018) p. 165.

Jean, N. J., & Gormley, M. Modelling water trap seal boundary conditions in building drainage systems: Computational fluid dynamics analysis of unsteady friction to improve accuracy. Building Services Engineering Research and Technology, vol 38, issue 5 (2017) pp. 580-601.

Gormley, M., Aspray, T. J., Kelly, D. A., & Rodriguez-Gil, C. Pathogen cross-transmission via building sanitary plumbing systems in a full scale pilot test-rig. PloS one, vol 12, issue 2 (2017) p. e0171556.

Lo, D. C., Liou, J. S., & Chang, S. W. Hydrodynamic performances of air-water flows in gullies with and without swirl generation vanes for drainage systems of buildings. Water, vol 7, issue 2 (2015) pp. 679-696.

Ardejani, F. D., Baafi, E., Panahi, K. S., Singh, R. N., & Shokri, B. J. Application of Computational Fluid Dynamics (CFD) for simulation of acid mine drainage generation and subsequent pollutants transportation through groundwater flow systems and rivers. Computational Fluid Dynamics Technologies and Applications, (2011) pp. 123-160.

Samsuddin, M. A. H. Airflow Analysis of the Bus Under Various Velocities Using CFD Simulation. Advanced and Sustainable Technologies (ASET), vol 3, issue 1 (2024) pp. 80-88.

Tan, K. M. Computational Fluid Dynamics Analysis on the Road Bike Using Different Flow Models under Extreme Inlet Velocity. Advanced and Sustainable Technologies (ASET), vol 3, issue 1 (2024) pp. 62-70.

Paramasivan, S. Analysis of Tesla CyberTruck Speed on the Velocity and Pressure Distribution Using SimFlow Software. Advanced and Sustainable Technologies (ASET), vol 3, issue 1 (2024) pp. 71-79.

Downloads

Published

2024-12-02

How to Cite

Muhammad Syafiq Bahanuddin. (2024). Effect of Inlet-Outlet Diameter on the Water Flow in Gully Trap for Water Drainage System: CFD Analysis. Advanced and Sustainable Technologies (ASET), 3(2), 61–70. https://doi.org/10.58915/aset.v3i2.1434

Issue

Section

Articles