The Investigation of Morphology Change Effects on Runup based on 2D Wave Flume Experiment

ABSTRACT Xu, Z.; Li, H.; Liang, B., and Lee, D.Y., 2018. The investigation of morphology change effects on run-up based on 2D wave flume experiment. In: Shim, J.-S.; Chun, I., and Lim, H.S. (eds.), Proceedings from the International Coastal Symposium (ICS) 2018 (Busan, Republic of Korea). Journal of Coastal Research, Special Issue No. 85, pp. 1021–1025. Coconut Creek (Florida), ISSN 0749-0208. The high speed swash motion and wave runup in swash zone induce high morphology dynamic change at the beach, which is closely related to dune erosion. In the present work, the process of wave runup was investigated through the analysis of laboratory experiment at 2D wave flume. The time variations of swash shape were recorded by using side-looking camera camera. Runup heights were obtained from the video image analysis. The wave resolving model, XBeach model, is also used to simulate wave runup height by preparing the input boundary conditions using the laboratory hydrodynamic data at offshore. Compared to the wave ...