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Numerical modeling of grounwater flow behavior in response to beach dewatering
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index.pdf
Date
2004
Author
Goler, Güneş
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In this study, The Beach Dewatering System, a relatively recent technology to combat beach erosion, which is proposed as a practical alternative to more traditional shoreline stabilization methods, is investigated and an informative overview on the genesis, development and recent use of this technique is provided. On the basis of the link existing between the elevation of beach groundwater and erosional or accretionary trends at the beach face, a numerical model that simulates groundwater flow in a coastal aquifer under beach drainage is presented. In this model, the seaward boundary of the domain is considered to be tidally fluctuating in a large scale to represent the occurrence of seepage face significantly. The unsteady groundwater flow equation is solved numerically using the method of finite differences. The results clearly showed that the water table being lowered caused the reduction of the seepage face which is the main aim of Beach Dewatering projects. The positional design parameters, i.e. horizontal and vertical location of the drain, are also investigated by utilizing an efficiency index. It is observed that the system efficiency decreased as the drain is shifted landward. The results also indicated that, the efficiency slightly increased with the vertical drain elevation.
Subject Keywords
Harbors and Coast Protective Works.
,
Coastal engineering.
,
Lighthouses.
URI
http://etd.lib.metu.edu.tr/upload/12605274/index.pdf
https://hdl.handle.net/11511/14389
Collections
Graduate School of Natural and Applied Sciences, Thesis
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G. Goler, “Numerical modeling of grounwater flow behavior in response to beach dewatering,” M.S. - Master of Science, Middle East Technical University, 2004.
