Keywords
beach nourishment
morphodynamic
numerical model
How to Cite
Abstract
This paper presents a 3 D morphodynamic model with shoreline change based on quasi-3D nearshore current model. In this model, sand nourishment process with sand dredging and charging was newly considered. First, in order to investigate the performance the present model, it is applied to the prediction of 3D beach evolution with sand bypassing system around a model port and sand recycling system between two groins. Secondly, the developed model was applied to morphodynamics after sand nourishment in a sand recycle project conducted Kaike Coats, Tottori,Japan. Finally, the applicability of the model was investigated and discussed.References
Bruno C., I.L.Turner, X. Bertin, and Tomlinson, R. 2009. Beach nourishments at Coolangatta Bay over the period 1987-2005: Imoacts and lessons, Coastal Engineering, 56: 940-950.
Chawla, A., and J.T.Kirby, 2002. Monochromatic and random wave breaking at blocking points. Journal of Geophysical Research, 107, No. C7.
De Vriend, H.J., J. Zyserman, J. Nicholson, J.A. Roelvink, P. Pechon, and H.N. Southgate. 1993. Medium-term 2DH coastal area modeling, Coastal Engineering, 21, 193-224.
Grunnet, N.M. and B. G. Ruessink. 2005. Morphodynamic response of nearshore bars to a shoreface nourishment, Coastal Engineering, 52: 119-137.
Kuroiwa,M., T.Kuchiishi, and Y.Matsubara. 2006. Prediction System of 3D Beach Evolution with 2DH and Q3D Hydrodynamic Modes, Proceedings of 16th International Offshore and Polar Engineering Conference, 751-757.
Kuroiwa,M., Y.Shibutani, Y.Matsubara, T. Kuchiishi, and M.Abualtyef. 2010. Numerical model of 3D morphodynamic after offshore nourishment, Proceedings of 31th International Conference On Coastal Engineering, No. 32, Paper #: sediments. 55. Retrieved from http://journals.tdl.org/ICCE/
Ojeda, E., B.G. Ruessink, and J. Guillen. 2008. Morphodynamic response of a two-barred beach to a shoreface nourishment, Coastal Engineering, 55, 1185-1196.
Mase, H. 2001. Multi-directional random wave transformation model based on energy balance equation, Coastal Engineering Journal, 43, No. 4: 317-337.
Mase, H., M.Yuhi, H.Amamori, and T.Takayama. 2004. Phase Averaging wave prediction model with breaking and diffraction effects in wave-current coexisting field. Annual Journal of Coastal Engineering, JSCE., 51, No.1: 6-10. ( In Japanese).
Mulder, J. P. M. and P.K. Tonnon. 2010. "Sand Engine†: Background and design of a mega-nourishment pilot in the Netherlands, Proceedings of 31th International Conference On Coastal Engineering, No. 32, Paper #: manegment.34. Retrieved from http://journals.tdl.org/ICCE/
Nishimura, H. 1988. Computation of nearshore current, Nearshore Dynamics and Coastal Process -Theory, Measurements and Predictive Models-(ed. Horikwa, K), University of Tokyo Press, 271-291.
Sawaragi, T., J.S. Lee, and I. Deguchi. 1986. A new model for prediction of beach deformation around river mouth, Proceedings of International Symposium on Ocean Space Utilization '85, 229-236.
Shibutani,Y., Y. Matsubara, and M. Kuroiwa. 2013. Effect of the coastal conservation due to beach nourishment of Tottori Sand Dune Coast, Proceedings of the 7th International Conference on Asian and Pacific Coasts, 79-84.
Shimizu,T., A. Yamada, and A. Watanabe. 1996. Coefficient and cross-shore distribution of alongshore sediment transport rate, Proceedings of Coastal Engineering, JSCE, 43, 571-575.(in Japanese)
van Duin,M.J.P., N.R. Wiersma, D. J. R.Walstra, L.C. van Rijn, and M.J.F. Stive. 2004. Nourishing the shoreface: observation and hind-casting of the Egmond case, The Netherlands, Coastal Engineering, 51: 813-837.
Watanabe, A., K. Maruyama, T. Shimizu, and T. Sakakiyama. 1986. A numerical prediction model of three-dimensional beach deformation around a structure, Coastal Eng. in Japan, 29, 179-194.
Zheng, J., H.Mase, Z. Demirbilek, and L. Lin. 2008. Implementation and evaluation of alternative wave breaking formula in a costal spectral wave model. Ocean Eng, 35, 1090-1101.