Supported by the Royal Academy of Engineering UK-China Urban Flooding Research Impact Programme(Grant No.UUFRIP\100051);the Ministry of Education and State Administration of Foreign Experts Affairs 111 Project(Grant No.B17015);the Cambridge Tier-2 system operated by the University of Cambridge Research Computing Service(http://www.hpc.cam.ac.uk)funded by EPSRC Tier-2 capital(Grant No.EP/P020259/1).
Wave propagation on uniformly sloped beaches is a canonical coastal engineering topic that has been studied extensively in the past few decades.However,most of these studies treat beaches as solid boundaries even thou...