报告题目：Mathematical Modelling of Shallow Water-Sediment Processes
报告人：Alistair Borthwick 院士

报告人单位：英国爱丁堡大学

时间：2015年9月18日（星期五）9:00

地点：工学部8教学楼319#

语言：英语

Alistair Borthwick 院士简介

Alistair G.L. Borthwick，英国皇家工程院院士，爱丁堡大学工学院应用水动力学系教授，牛津大学荣休教授。从事土木、海岸工程研究35年，领域涉及环境工程、洪水风险管理、海岸过程及海洋可再生能源等，并在该领域发表论文130余篇，指导博士研究生37人。

Abstract:

     Environmental free surface flow processes encompass ocean waves, river flows, lake stratification, urban floods, etc.  This seminar will first outline conservation laws for shallow water-sediment flows, which include both suspended sediment transport and bed load, then discuss their solution using a Godunov-type finite volume scheme.  Numerical solutions will be presented for idealized sediment deposition, entrainment, and bed morphodynamic change due to a dam break over an erodible bed.  Advances in bed load modelling will also be described, aimed at reducing the empiricism inherent in sediment transport formulae.  The model will be used to examine the influence of bed slope on bedload.  Use of a dynamically adaptive quadtree solver will be discussed for application to flood inundation and flow stratification.  The seminar will end by considering the use of a simple numerical particle tracking approach to represent chaotic advection and mixing processes in shallow environmental domains.

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