Abstract
This paper analyzes the modeling of the hydro- and morphodynamics of bichromatic wave groups on an intermediate beach with an initial slope. The nonhydrostatic version of XBeach was used to simulate two incident wave conditions of the experiments carried out within the HYDRALAB-IV Coupled High Frequency Measurement of Swash Sediment Transport and Morphodynamic (CoSSedM) project. The chosen forcing conditions have different strengths of swash–swash interaction. A procedure was developed to generate boundary conditions for the model that are able to fully account for both the bound and free long waves measured during the experiments. Using the normalized root-mean-squared error as a measure, this paper finds a higher accuracy of the nonhydrostatic version of XBeach in simulating swash–swash interaction from the hydrodynamics point of view, and worse performances in capturing the details of intragroup sediment transport. Nevertheless, the model is able to distinguish the relative difference in offshore swash sediment transport among different types of swash–swash interaction, and it is overall more successful in simulating beach morphodynamics when the swash sediment transport is of the same order of magnitude as the surf zone one.
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Acknowledgments
The experimental part of this work was funded by European Community’s Seventh Framework Programme through the grant to the budget of the Integrating Activity HYDRALAB-IV within the Transnational Access Activities, Contract No. 261520.
References
Alsina, J. M., I. Cáceres, M. Brocchini, and T. E. Baldock. 2012. “An experimental study on sediment transport and bed evolution under different swash zone morphological conditions.” Coastal Eng. 68 (Oct): 31–43. https://doi.org/10.1016/j.coastaleng.2012.04.008.
Alsina, J. M., E. M. Padilla, and I. Cáceres. 2016. “Sediment transport and beach profile evolution induced by bi-chromatic wave groups with different group periods.” Coastal Eng. 114 (Aug): 325–340. https://doi.org/10.1016/j.coastaleng.2016.04.020.
Alsina, J. M., J. van der Zanden, I. Cáceres, and J. S. Ribberink. 2018. “The influence of wave groups and wave-swash interactions on sediment transport and bed evolution in the swash zone.” Coastal Eng. 140 (Oct): 23–42. https://doi.org/10.1016/j.coastaleng.2018.06.005.
Baldock, T., J. Alsina, I. Caceres, D. Vicinanza, P. Contestabile, H. Power, and A. Sanchez-Arcilla. 2011. “Large-scale experiments on beach profile evolution and surf and swash zone sediment transport induced by long waves, wave groups and random waves.” Coastal Eng. 58 (2): 214–227. https://doi.org/10.1016/j.coastaleng.2010.10.006.
Baldock, T. E., and P. Holmes. 1999. “Simulation and prediction of swash oscillations on a steep beach.” Coastal Eng. 36 (3): 219–242. https://doi.org/10.1016/S0378-3839(99)00011-3.
Briganti, R., N. Dodd, D. Kelly, and D. Pokrajac. 2012. “An efficient and flexible solver for the simulation of the morphodynamics of fast evolving flows on coarse sediment beaches.” Int. J. Numer. Methods Fluids 69 (4): 859–877. https://doi.org/10.1002/fld.2618.
Briganti, R., A. Torres-Freyermuth, T. E. Baldock, M. Brocchini, N. Dodd, T.-J. Hsu, Z. Jiang, Y. Kim J. C. Pintado-Patiño, and M. Postacchini. 2016. “Advances in numerical modelling of swash zone dynamics.” Coastal Eng. 115 (Sep): 26–41. https://doi.org/10.1016/j.coastaleng.2016.05.001.
Brocchini, M., and T. Baldock. 2008. “Recent advances in modeling swash zone dynamics: Influence of surf-swash interaction on nearshore hydrodynamics and morphodynamics.” Rev. Geophys. 46 (3): 1–21. https://doi.org/10.1029/2006RG000215.
Cáceres, I., and J. M. Alsina. 2012. “A detailed, event-by-event analysis of suspended sediment concentration in the swash zone.” Cont. Shelf Res. 41 (Jun): 61–76. https://doi.org/10.1016/j.csr.2012.04.004.
Chardón-Maldonado, P., J. C. Pintado-Patiño, and J. A. Puleo. 2016. “Advances in swash-zone research: Small-scale hydrodynamic and sediment transport processes.” Coastal Eng. 115 (Sep): 8–25. https://doi.org/10.1016/j.coastaleng.2015.10.008.
Chen, B.-T., G. A. Kikkert, D. Pokrajac, and H.-J. Dai. 2016. “Experimental study of bore-driven swash-swash interactions on an impermeable rough slope.” Coastal Eng. 108 (Sep): 10–24. https://doi.org/10.1016/j.coastaleng.2015.10.010.
Hughes, M. G., and A. S. Moseley. 2007. “Hydrokinematic regions within the swash zone.” Cont. Shelf Res. 27 (15): 2000–2013. https://doi.org/10.1016/j.csr.2007.04.005.
Incelli, G., N. Dodd, C. E. Blenkinsopp, F. Zhu, and R. Briganti. 2016. “Morphodynamical modelling of field-scale swash events.” Coastal Eng. 115 (Sep): 42–57. https://doi.org/10.1016/j.coastaleng.2015.09.006.
Masselink, G., and J. A. Puleo. 2006. “Swash zone morphodynamics.” Cont. Shelf Res. 26 (5): 661–680. https://doi.org/10.1016/j.csr.2006.01.015.
Masselink, G., P. Russell, C. Blenkinsopp, and I. Turner. 2010. “Swash zone sediment transport, step dynamics and morphological response on a gravel beach.” Mar. Geol. 274 (1): 50–68. https://doi.org/10.1016/j.margeo.2010.03.005.
Masselink, G., P. Russell, I. Turner, and C. Blenkinsopp. 2009. “Net sediment transport and morphological change in the swash zone of a high-energy sandy beach from swash event to tidal cycle time scales.” Mar. Geol. 267 (1): 18–35. https://doi.org/10.1016/j.margeo.2009.09.003.
Padilla, E. M., and J. M. Alsina. 2017. “Transfer and dissipation of energy during wave group propagation on a gentle beach slope.” J. Geophys. Res.: Oceans 122 (8): 6773–6794. https://doi.org/10.1002/2017JC012703.
Postacchini, M., M. Brocchini, A. Mancinelli, and M. Landon. 2012. “A multi-purpose, intra-wave, shallow water hydro-morphodynamic solver.” Adv. Water Resour. 38 (0): 13–26. https://doi.org/10.1016/j.advwatres.2011.12.003.
Puleo, J., T. Lanckriet, and C. Blenkinsopp. 2014. “Bed level fluctuations in the inner surf and swash zone of a dissipative beach.” Mar. Geol. 349 (Mar): 99–112. https://doi.org/10.1016/j.margeo.2014.01.006.
Rijnsdorp, D. P., P. B. Smit, and M. Zijlema. 2014. “Non-hydrostatic modelling of infragravity waves under laboratory conditions.” Coastal Eng. 85 (Mar): 30–42. https://doi.org/10.1016/j.coastaleng.2013.11.011.
Roelvink, D., R. McCall, S. Mehvar, K. Nederhoff, and A. Dastgheib. 2018. “Improving predictions of swash dynamics in XBeach: The role of groupiness and incident-band runup.” Coastal Eng. 134 (Apr): 103–123. https://doi.org/10.1016/j.coastaleng.2017.07.004.
Roelvink, D., A. Reniers, A. van Dongeren, J. van Thiel de Vries, R. McCall, and J. Lescinski. 2009. “Modelling storm impacts on beaches, dunes and barrier islands.” Coastal Eng. 56 (11–12): 1133–1152. https://doi.org/10.1016/j.coastaleng.2009.08.006.
Smit, P., G. Stelling, J. A. Roelvink, J. van Thiel de Vries, R. McCall, A. Van Dongeren, C. Zwinkels, and R. Jacobs. 2010. Xbeach: Non-hydrostatic model: Validation, verification and model description. Delft, Netherlands: Delft Univ.
van der Zanden, J., J. M. Alsina, I. Cáceres, R. H. Buijsrogge, and J. S. Ribberink. 2015. “Bed level motions and sheet flow processes in the swash zone: Observations with a new conductivity-based concentration measuring technique (CCM+).” Coastal Eng. 105 (Nov): 47–65. https://doi.org/10.1016/j.coastaleng.2015.08.009.
van Rijn, L. C. 2007. “Unified view of sediment transport by currents and waves. I: Initiation of motion, bed roughness, and bed-load transport.” J. Hydraul. Eng. 133 (6): 649–667. https://doi.org/10.1061/(ASCE)0733-9429(2007)133:6(649).
van Thiel de Vries, J. 2009. “Dune erosion during storm surges.” Ph.D. thesis, Dept. of Hydraulic Engineering, Delft Univ. of Technology.
Zijlema, M., G. Stelling, and P. Smit. 2011. “SWASH: An operational public domain code for simulating wave fields and rapidly varied flows in coastal waters.” Coastal Eng. 58 (10): 992–1012. https://doi.org/10.1016/j.coastaleng.2011.05.015.
Information & Authors
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 146 • Issue 1 • January 2020
Copyright
©2019 American Society of Civil Engineers.
History
Received: Oct 3, 2018
Accepted: Mar 25, 2019
Published online: Oct 29, 2019
Published in print: Jan 1, 2020
Discussion open until: Mar 29, 2020
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