水科学进展2017，Vol.28Issue(1)：96-105,10.DOI:10.14042/j.cnki.32.1309.2017.01.011
基于二维浅水方程的滑坡体兴波数值模型
A numerical model for landslide-generated waves based on two-dimensional shallow water equations
摘要
Abstract
Based on the finite-volume method and a structured mesh system,a numerical model for simulating landslide-generated waves is developed.The governing equations are the two-dimensional nonlinear shallow water (NLSW) equations with the consideration of a dynamic seabed.The central upwind scheme is used to compute the numerical interface flux.The second-order MUSCL method for variables reconstruction,local bed modification and implicit treatment to bottom friction are used to ensure the properties of well-balanced,conservative and non-negative water depth,as well as the ability to deal with the moving shoreline.The second-order Runge-Kutta method with Strong Stability Preserving (SSP) is adopted to perform the time marching.A series of benchmark cases are simulated and the numerical results are compared with the analytical solution,experimental data and numerical results from other models.It is found the present model can simulate the generation,propagation and runup of the landslide-generated waves for the considered cases with reasonable accuracy.关键词
滑坡体兴波/非线性浅水方程/有限体积方法/中心迎风格式Key words
landslide-generated waves/nonlinear shallow water equations/finite volume method/central upwind scheme分类
数理科学引用本文复制引用
房克照,尹晶,孙家文,焦子峰..基于二维浅水方程的滑坡体兴波数值模型[J].水科学进展,2017,28(1):96-105,10.基金项目
国家自然科学基金资助项目(51579034) （51579034）
辽宁省教育厅重点实验室基础研究资助项目(LZ2015013) （LZ2015013）
The study is financially supported by the National Natural Science Foundation of China (No.51579034). （No.51579034）
