A Hydrodynamic Study of Water Flushing Parameters to Improve the Water Quality Inside Marinas and Lagoons

This research describes how integration of engineering and environmental aspects into the planning with extensive use of numerical hydrodynamics models by using MIKE 21 software. A parametric study for different parameters which affect the residence time hence the water quality in lagoons, marinas,...

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Main Authors: Elsayed Galal, Ahmed Lebleb, Ehab Tolba
Format: Article
Language:English
Published: Port Said University 2020-09-01
Series:Port Said Engineering Research Journal
Subjects:
Online Access:https://pserj.journals.ekb.eg/article_75816_f3aaf96564a1d895f5c28f46e7b43d95.pdf
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author Elsayed Galal
Ahmed Lebleb
Ehab Tolba
author_facet Elsayed Galal
Ahmed Lebleb
Ehab Tolba
author_sort Elsayed Galal
collection DOAJ
description This research describes how integration of engineering and environmental aspects into the planning with extensive use of numerical hydrodynamics models by using MIKE 21 software. A parametric study for different parameters which affect the residence time hence the water quality in lagoons, marinas, harbors and coastal basins was carried out to establish guidelines to improvement methods for water flushing of marinas and lagoons. Finite element conceptual computer models are applied to simulate and investigate the most important factors dominate the resident time and water exchange rate like tidal inlets characteristics (number-location-width), the shape of water body, basin dimensions and tidal variations. The boundary condition, water level variations used in simulations are collected based on the conditions of fishery ports and lagoons along Egyptian coastal line in Mediterranean and red sea. This study conducted a wide range of numerical simulation (more than 50 HD models) with different geometry and boundary conditions. The results showed that the square shape of water surface area is more efficient for small water body areas. While, as the area required increased, the rectangular water surface efficiency become closer. The inlet width and its location should be determined wisely to achieve the optimization for the usage of project. Finally, the results showed that as the level variations values increased, the maximum flood current velocities at the entrance increased. In addition, the flow spreading quality increased with higher water level values over the all water surface area regardless the water depth.
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spelling doaj.art-8d25a15ec9174756a9425f14299c75062023-10-23T05:58:57ZengPort Said UniversityPort Said Engineering Research Journal1110-66032536-93772020-09-01242526210.21608/pserj.2020.23849.103275816A Hydrodynamic Study of Water Flushing Parameters to Improve the Water Quality Inside Marinas and LagoonsElsayed Galal0Ahmed Lebleb1Ehab Tolba2Department of Civil Engineering, Faculty of Engineering, Port Said UniversityCoastal and Marine Engineer at Dar Al-HandasahProfessor, Faculty of Engineering, Port Said University, Egypt,This research describes how integration of engineering and environmental aspects into the planning with extensive use of numerical hydrodynamics models by using MIKE 21 software. A parametric study for different parameters which affect the residence time hence the water quality in lagoons, marinas, harbors and coastal basins was carried out to establish guidelines to improvement methods for water flushing of marinas and lagoons. Finite element conceptual computer models are applied to simulate and investigate the most important factors dominate the resident time and water exchange rate like tidal inlets characteristics (number-location-width), the shape of water body, basin dimensions and tidal variations. The boundary condition, water level variations used in simulations are collected based on the conditions of fishery ports and lagoons along Egyptian coastal line in Mediterranean and red sea. This study conducted a wide range of numerical simulation (more than 50 HD models) with different geometry and boundary conditions. The results showed that the square shape of water surface area is more efficient for small water body areas. While, as the area required increased, the rectangular water surface efficiency become closer. The inlet width and its location should be determined wisely to achieve the optimization for the usage of project. Finally, the results showed that as the level variations values increased, the maximum flood current velocities at the entrance increased. In addition, the flow spreading quality increased with higher water level values over the all water surface area regardless the water depth.https://pserj.journals.ekb.eg/article_75816_f3aaf96564a1d895f5c28f46e7b43d95.pdfflushing timeadvection-dispersionwater qualitytidal prism
spellingShingle Elsayed Galal
Ahmed Lebleb
Ehab Tolba
A Hydrodynamic Study of Water Flushing Parameters to Improve the Water Quality Inside Marinas and Lagoons
Port Said Engineering Research Journal
flushing time
advection-dispersion
water quality
tidal prism
title A Hydrodynamic Study of Water Flushing Parameters to Improve the Water Quality Inside Marinas and Lagoons
title_full A Hydrodynamic Study of Water Flushing Parameters to Improve the Water Quality Inside Marinas and Lagoons
title_fullStr A Hydrodynamic Study of Water Flushing Parameters to Improve the Water Quality Inside Marinas and Lagoons
title_full_unstemmed A Hydrodynamic Study of Water Flushing Parameters to Improve the Water Quality Inside Marinas and Lagoons
title_short A Hydrodynamic Study of Water Flushing Parameters to Improve the Water Quality Inside Marinas and Lagoons
title_sort hydrodynamic study of water flushing parameters to improve the water quality inside marinas and lagoons
topic flushing time
advection-dispersion
water quality
tidal prism
url https://pserj.journals.ekb.eg/article_75816_f3aaf96564a1d895f5c28f46e7b43d95.pdf
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