Numerical modelling of rubble mound damage under wave loading

在过去的几年里，帝国理工学院在FEMDEM模型solid （www.Solidityproject.com）上的新发展在许多方向上开辟了新的研究领域。与海岸工程界最相关的是流固相互作用。在这个方向上的研究使得基于沉体法的固性和流动性之间实现了强大的双向耦合（Latham等人，2009年，Xiang等人，2012年），但其极高的计算成本使其不适合具有大量颗粒的情况，例如碎石堆。另外，最近考虑了一种单向耦合波结构相互作用技术（“波代理”）（REF）。本博士旨在重新审视、进一步开发和验证Wave Proxy技术，为设计师和研究人员提供一种新的工具，以比物理建模更低的成本和更短的时间尺度分析碎石丘结构的损伤。

Over the past few years new developments at Imperial College on the FEMDEM model Solidity (www.Solidityproject.com) have opened new areas of research in many directions. The most relevant one for the coastal engineering community has been the fluid-solid interaction. Work pursued in this direction lead to a robust two-way coupling being implemented between Solidity and Fluidity based on the immersed body method (Latham et al., 2009 and Xiang et al., 2012), but its very high computational cost makes it unsuitable for cases with large number of particles, such as rubble mounds.Alternatively, a one-way coupling wave-structure interaction technology ("Wave Proxy") has been recently considered (REF). This PhD aims to revisit, further develop and validate the Wave Proxy technology, providing a new tool for designers and researchers to analyse damage on rubble mound structures with a much lower cost and shorter time scale than physical modelling.