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http://dx.doi.org/10.26748/KSOE.2019.089

Effects of Coastal Groundwater Level on Beach Deformation  

Lee, Woo-Dong (Department of Ocean Civil Engineering, Gyeongsang National University)
Hur, Dong-Soo (Department of Ocean Civil Engineering, Gyeongsang National University)
Publication Information
Journal of Ocean Engineering and Technology / v.33, no.6, 2019 , pp. 581-589 More about this Journal
Abstract
In order to understand the characteristics of beach deformation, in this study, numerical simulations were conducted using a 3-D hydro-morphodynamic model (HYMO-WASS-3D) to analyze the characteristics of beach deformation due to the coastal groundwater levels. HYMO-WASS-3D directly analyzed the nonlinear interaction between the hydrodynamic and morphodynamic processes in the coastal area. The simulation results of HYMO-WASS-3D showed good agreement with the experimental results on the changes in the profile of the beach in the surf and swash zones. Then, numerical simulations were conducted to examine the characteristics of beach deformation due to the variation of the level of the coastal groundwater. As a result, the beach profiles were examined in relation to the wave breaking in the surf zone and the wave uprush and backwash in the swash zone due to the differences in the water levels. This paper also discussed the temporal and spatial distributions of the velocities, vorticities, and suspended sediments in the surf and swash zones with various levels of the coastal groundwater.
Keywords
Beach deformation; Beach erosion; Swash zone; Surf zone; Coastal groundwater; Wave uprush-backwash;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 Smagorinsky, J., 1963. General Circulation Experiments with the Primitive Equation: I. The Basic Experimen. Monthly Weather Review, 91(3), 99-164. https://doi.org/10.1175/1520-0493(1963)091<0099:GCEWTP>2.3.CO;2   DOI
2 van Rijn, L.C., 1984a. Sediment Transport, Part I: Bed Load Transport. Journal of Hydraulic Engineering, 110(10), 1431-1456. https://doi.org/10.1061/(ASCE)0733-9429(1984)110:10(1431)   DOI
3 van Rijn, L.C., 1984b. Sediment Transport, Part II: Suspended Load Transport. Journal of Hydraulic Engineering, 110(11), 1613-1641. https://doi.org/10.1061/(ASCE)0733-9429(1984)110:11(1613)   DOI
4 Bagnold, R.A., 1954. Experiments on a Gravity-Free Dispersion of Large Solid Spheres in a Newtonian Fluid under Shear. Proceedings of the Royal Society of London, 225(1160), 49-63. https://doi.org/10.1098/rspa.1954.0186
5 Brackbill, J.U., Kothe, D.B., Zemach, C., 1992. A Continuum Model for Modeling Surface Tension. Journal of Computational Physics, 100(2), 335-354. https://doi.org/10.1016/0021-9991(92)90240-Y   DOI
6 Choi, J., Roh, M., Kim, Y.T., 2016. A Laboratory Experiment on Beach Profile Evolution Induced by Two Wave Conditions Dominated in the Haeundae Coast of Korea. Journal of Coastal Research, SI 75, 1327-1331. https://doi.org/10.2112/SI75-266.1   DOI
7 Hur, D.S., Lee, W.D., Bae, K.S., 2008. On Reasonable Boundary Condition for Inclined Seabed/Structure in Case of the Numerical Model with Quadrilateral Mesh System. Journal of The Korean Society of Civil Engineers, 28(5B), 591-594.
8 Ford, D.E., Johnson, L.S., 1986. An Assessment of Reservoir Mixing Process. Technical Report E-86-7, U.S. Army Engineer Waterways Experiment Station, Vicksburg.
9 Germano, M., Piomelli, U., Moin, P., Cabot, W.H., 1991. A Dynamic Subgrid-Scale Eddy Viscosity Model. Physics of Fluids, 3, 1760-1765. https://doi.org/10.1063/1.857955   DOI
10 Hirt, C.W., Nichols, B.D., 1981. Volume of Fluid (VOF) Method for the Dynamics of Free Boundaries. Journal of Computational Physics, 39(1), 201-225. https://doi.org/10.1016/0021-9991(81)90145-5   DOI
11 Hur, D.S., Lee, W.D., Cho, W.C., 2012a. Beach Stabilization by the Laying of a Drainage Layer. Science China Technological Sciences, 55(9), 2625-2639. https://doi.org/10.1007/ s11431-012-4886-6   DOI
12 Hur, D.S., Lee, W.D., Cho, W.C., 2012b. Three-Dimensional Flow Characteristics around Permeable Submerged Breakwaters with Open Inlet. Ocean Engineering, 44, 100-116. https://doi.org/10.1016/j.oceaneng.2012.01.029   DOI
13 Hur, D.S., Lee, W.D., Cho, W.C., 2012c. Characteristics of Wave Run-Up Height on a Sandy Beach behind Dual-Submerged Breakwaters. Ocean Engineering, 45, 38-55. https://doi.org/10.1016/j.oceaneng.2012.01.030   DOI
14 Kanazawa, H., Matukawa, F., Katoh, K., Hasegawa, I., 1996. Experimental Study on the Effect of Gravity Drainage System on Beach Stabilization. Proceedings of 25th International Conference on Coastal Engineering, ASCE, 2640-2653. https://doi.org/10.1061/9780784402429.204
15 Nielsen, P., Robert, S., Moller-Christiansen, B., Oliva, P., 2001. Infiltration Effects on Sediment Mobility under Waves. Coastal Engineering, 42(2), 105-114. https://doi.org/10.1016/S0378-3839(00)00051-X   DOI
16 Katoh, K., Yanagishima, S., 1996. Field Experiment on The Effect of Gravity Drainage System on Beach Stabilization. 25th International Conference on Coastal Engineering, ASCE, 2654-2665. https://doi.org/10.1061/9780784402429.205
17 Kraus, N.C., Isobe, M., Igarashi, H., Sasaki, T., Horikawa, K., 1982. Fields Experiments on Longshore Sand Transport in the Surf Zone. 18th International Conference on Coastal Engineering, ASCE, 969-988. https://doi.org/10.1061/9780872623736.061
18 Lee, W.D., Hur, D.S., 2014a. Development of a 3-D Coupled Hydro-Morphodynamic Model between Numerical Wave Tank and Morphodynamic Model under Wave-Current Interaction. Journal of the Korean Society of Civil Engineers, 34(5), 1463-1476. https://doi.org/10.12652/Ksce.2014.34.5.1463   DOI
19 Lee, W.D., Hur, D.S., 2014b. Development of 3-D Hydrodynamical Model for Understanding Numerical Analysis of Density Current Due to Salinity and Temperature and its Verification. Journal of the Korean Society of Civil Engineers, 34(3), 859-871. https://doi.org/10.12652/Ksce.2014.34.3.0859   DOI
20 Lilly, D.K., 1992. A Proposed Modification of the Germano Subgrid-Scale Closure Method. Physics of Fluids, 4(3), 633-635. https://doi.org/10.1063/1.858280   DOI
21 Raffel, M., Willert, C.E., Kompenhans, J., 1998. Particle Image Velocimetry: A Practical Guide. Springer Verlag, Berlin.