The Library
The effects of porous baffles on the hydraulic performance of sediment retention ponds — a numerical modelling study
Tools
Tools
Tools
Guo, Mingqi, Goodarzi, Danial, Borzooei, Sina, Pearson, Jonathan M. and Abolfathi, Soroush (2022) The effects of porous baffles on the hydraulic performance of sediment retention ponds — a numerical modelling study. International Journal of Environmental Science and Development, 13 (6). pp. 239-245. doi:10.18178/ijesd.2022.13.6.1399 ISSN 2010-0264.
|
PDF
1399-TA0020.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (2034Kb) | Preview |
Official URL: http://doi.org/10.18178/ijesd.2022.13.6.1399
Abstract
This study develops a numerical model for investigating the hydraulic characteristics of a retention pond with porous baffles. The numerical model is developed using the Reynolds-averaged Navier-Stokes equations (RANS) with k-εturbulence closure model. The model is successfully validated using physical modelling measurements. The proposed model is used to investigate the key mechanisms that govern and influence the hydraulic efficiency of retention ponds with porous baffles. Three configurations with varying numbers and locations of baffles are simulated. The numerical results are analyzed by comparison of velocity fields, tracer transport patterns, and associated residence time distributions (RTDs) across all the simulation scenarios. It was found that the porous baffles effectively improve hydraulic performance by creating uniform flow distribution and dissipating the flow energy, thereby avoiding dead zones and mitigating short-circuiting. Results show that the location of the first baffle plays a critical role in the flow momentum dissipation. Carefully considerations are required to determine the optimal number and positions of baffles in a specific system. The numerical RTDs are in good agreement with the physical modelling data, confirming the positive contribution of porous baffles to the overall hydraulic performance of the pond by extending the average tracer residence time.
| Item Type: | Journal Article | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering | |||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | |||||||||
| Library of Congress Subject Headings (LCSH): | Hydraulics, Environmental hydraulics, Sedimentation and deposition, Drainage -- Environmental aspects, Sediment control, Settling basins -- Mathematical models | |||||||||
| Journal or Publication Title: | International Journal of Environmental Science and Development | |||||||||
| Publisher: | IJESD | |||||||||
| ISSN: | 2010-0264 | |||||||||
| Official Date: | December 2022 | |||||||||
| Dates: |
|
|||||||||
| Volume: | 13 | |||||||||
| Number: | 6 | |||||||||
| Page Range: | pp. 239-245 | |||||||||
| DOI: | 10.18178/ijesd.2022.13.6.1399 | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Access rights to Published version: | Open Access (Creative Commons) | |||||||||
| Date of first compliant deposit: | 21 March 2023 | |||||||||
| Date of first compliant Open Access: | 21 March 2023 | |||||||||
| RIOXX Funder/Project Grant: |
|
Request changes or add full text files to a record
Repository staff actions (login required)
 |
View Item |
Downloads
Downloads per month over past year
